Pistorius Returns to Bail Hearing

PRETORIA, South Africa — Oscar Pistorius, the double amputee track star accused of murdering his girlfriend, returned to court on Friday for the fourth straight day of hearings about whether he should be granted bail in a case that has riveted the nation.

News reports said he slipped into the courthouse, his head covered by a jacket, some time before the start of hearings that have packed the courtroom with a scrum of journalists alongside legal teams, family members and onlookers. He took his place on Friday to a clatter of photographers’ cameras. In the latest in a series of abrupt twists in the affair on Thursday, the South African police replaced the lead investigator after revelations that he was facing seven charges of attempted murder stemming from an episode in which police officers fired at a minivan.

After widespread news reports about the charges, Gerrie Nel, the prosecutor, said at the start of a hearing on Thursday that he had just learned about them. The national police commissioner, Riah Phiyega, said later that a divisional police commissioner, Lt. Gen. Vinesh Moonoo, would be assigned to preside over “this very important investigation.” The change was announced a day after the original lead investigator, Detective Warrant Officer Hilton Botha, acknowledged several mistakes in the police work and conceded that, based on the existing evidence, he could not rule out the version of events presented by Mr. Pistorius.

The prosecution says Mr. Pistorius committed the premeditated murder of Reeva Steenkamp, a 29-year-old model and law graduate, when he fired four shots through a locked bathroom door while she was on the other side in the early hours of Feb. 14.

With his head bowed as he entered the court on Friday, Mr. Pistorius appeared to be struggling to hold back tears, his jaw clenched, the prosecutor, described Ms. Steenkamp’s plight that morning.

“I am not saying the planning of the murder of Reeva Steenkamp happened weeks ahead, days ahead,” Mr. Nel said. “I am saying the planning to kill Reeva Steenkamp happened that night.”

Ms. Steenkamp took refuge in the bathroom either to escape a fight or a gun, he said. The prosecution is seeking to persuade the magistrate, Desmond Nair, to deny the sprinter’s application be released on bail until a full trial, arguing that he might flee.

Mr. Pistorius has said that he opened fire believing there was an intruder in his home, in a gated community in Pretoria, and that he had no intention of killing Ms. Steenkamp, 29, a model and law school graduate.

On Thursday, Mr. Nel labeled Mr. Pistorius’s account “improbable.”

“What we can’t forget is the applicant is charged with murdering a defenseless, innocent woman,” Mr. Nel said.

Mr. Pistorius has said that he did not realize Ms. Steenkamp was no longer in bed as he rose to check for an intruder, shouting to her to call the police.

“You want to protect her, but you don’t even look at her?” Mr. Nel said on Thursday. “You don’t even ask, ‘Reeva, are you all right?’ 

On Thursday, a police brigadier, Neville Malila, told reporters that Detective Botha was scheduled to appear in court in May on the attempted murder charges in connection with an episode in which Mr. Botha and two other police officers fired at a minivan.

“Botha and two other policemen allegedly tried to stop a minibus taxi with seven people,” Brigadier Malila said. “They fired shots.” While the charges were initially dropped, “we were informed yesterday that the charges will be reinstated,” he said.

Medupe Simasiku, a spokesman for the National Prosecuting Authority, told reporters that the decision to reinstate the charges was made on Feb. 4, long before Ms. Steenkamp was killed.

Lydia Polgreen reported from Pretoria, South Africa, and Alan Cowell from London.

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The Trade: A Revolving Door in Washington With Spin, but Less Visibility

Obsess all you’d like about President Obama’s nomination of Mary Jo White to head the Securities and Exchange Commission. Who heads the agency is vital, but important fights in Washington are happening in quiet rooms, away from the media gaze.

After a widely praised stint as a tough United States attorney, Ms. White spent the last decade serving so many large banks and investment houses that by the time she finishes recusing herself from regulatory matters, she may be down to overseeing First Wauwatosa Securities.

Ms. White maintains she can run the S.E.C. without fear or favor. But the focus shouldn’t be limited to whether she can be effective. For lobbyists, the real targets are regulators and staff members for lawmakers.

Ms. White, at least, will have to sit for Congressional testimony, answer occasional questions from the media and fill out disclosure forms. Staff members, however, work in untroubled anonymity for the most part. So, while everyone knows there’s a revolving door — so naïve to even bring it up! — few realize just how fluidly it spins.

Take what happened late last month as Washington geared up for more fights about the taxing, spending and the deficit. The Senate majority leader, Harry Reid, Democrat of Nevada, decided to bolster his staff’s expertise on taxes.

So on Jan. 25, Mr. Reid’s office announced that he had appointed Cathy Koch as chief adviser to the majority leader for tax and economic policy. The news release lists Ms. Koch’s admirable and formidable experience in the public sector. “Prior to joining Senator Reid’s office,” the release says, “Koch served as tax chief at the Senate Finance Committee.”

It’s funny, though. The notice left something out. Because immediately before joining Mr. Reid’s office, Ms. Koch wasn’t in government. She was working for a large corporation.

Not just any corporation, but quite possibly the most influential company in America, and one that arguably stands to lose the most if there were any serious tax reform that closed corporate loopholes. Ms. Koch arrives at the senator’s office by way of General Electric.

Yes, General Electric, the company that paid almost no taxes in 2010. Just as the tax reform debate is heating up, Mr. Reid has put in place a person who is extraordinarily positioned to torpedo any tax reform that might draw a dollar out of G.E. — and, by extension, any big corporation.

Omitting her last job from the announcement must have merely been an oversight. By the way, no rules prevent Ms. Koch from meeting with G.E. or working on issues that would affect the company.

The senator’s office, which declined to make Ms. Koch available for an interview, says that she will support the majority leader in his efforts to close corporate tax loopholes. His office said in a statement that the senator considered her knowledge of the private sector to be an asset and that she complied with “all relevant Senate ethics rules and disclosures.”

In a statement, the senator’s spokesman said, “The impulse in some quarters to reflexively cast suspicion on private sector experience is part of what makes qualified individuals reluctant to enter public service.”

Over in bank regulatory land, meanwhile, January was playing out like a Beltway remake of “Freaky Friday.”

Julie Williams, chief counsel for the Office of the Comptroller of the Currency and a major friend of the banks for years, had been recently shown the door by Thomas J. Curry, the new head of the regulator. Banking reform advocates took that to be an omen that a new era might be dawning at the agency, which has often been a handmaiden to large banks.

Ms. Williams, of course, landed on her feet. She’s now at the Promontory Financial Group, a classic Washington creature that is a private sector mirror image of a regulatory body. Promontory is the Shadow O.C.C. The firm was founded by a former head of the agency, Eugene A. Ludwig, and if you were to walk down the halls swinging a copy of the Volcker Rule, you would be sure to hit a former O.C.C. official. Promontory says only about 5 percent of its employees come from the O.C.C., but concedes that more than a quarter are former regulators.

Promontory, as the firm explains on its Web site, “excels at helping financial companies grapple with and resolve critical issues, particularly those with a regulatory dimension.” But it plays for the other team, too, by helping the O.C.C. put into effect regulatory reviews. The dreary normality of this is a Washington scandal in the Michael Kinsley sense: a perfectly legal one.

Promontory, which demurred on a request to talk with Ms. Williams, has a different view. The firm doesn’t lobby or help in litigation. It argues that after banks stop fighting regulators and lobbying against rules, then they come to Promontory to figure out how to fix their problems and comply.

“We are known in the industry as the tough-love doctors,” said Mr. Ludwig, the chief executive of Promontory. “I am deeply committed to financial stability, and the only way to have stability is to do the right thing in both the spirit and letter of the law.”

Hmm. Remember the Independent Foreclosure Review, the program that the O.C.C. and other federal bank regulators trumpeted as the largest effort to compensate victims of big banks’ foreclosure abuses? As my colleague at ProPublica, Paul Kiel, detailed last year, that review involved consultants like Promontory essentially letting banks decide who was victimized. How well did that work? So well that the regulators had to scuttle the program because it hadn’t given one red cent to homeowners but somehow, I don’t know how, managed to send more than $1.5 billion to consultants — including Promontory.

Promontory maintains that it complied with the conditions set out by the O.C.C. And the review was replaced by a settlement, which the regulators say will compensate victims — though the average payout is small beer.

Who, exactly, makes the rules at the O.C.C.? I mentioned “Freaky Friday.” That’s because at the agency, Ms. Williams is being replaced by Amy Friend. And where is Ms. Friend coming from? Wait for it … Promontory. In March, maybe they’ll do the switcheroo back.

The O.C.C. didn’t make Ms. Friend available but said that her “talent, integrity and commitment to public service are beyond reproach” and would be subject to the rule requiring her to recuse herself for a year on matters specifically relating to her former employer.

I spoke with people who said she was a smart and dedicated public servant, an expert on the Dodd-Frank Act who can help complete the scandalously long list of unfinished rules and expedite its adoption.

“Amy Friend is absolutely rowing in the right direction,” said a Senate staff member who worked on efforts to push for stronger financial regulation.

Let’s hope so.

But people also described Ms. Friend as pragmatic. In Washington, that’s the ultimate compliment. Sadly, that has come to mean someone who seeks compromise and never pushes for an overhaul when a quarter-measure will do.

Washington today resembles something like the end of “Animal Farm.” People move from one side of the table to the other and up and down the Acela corridor with ease. An outsider looking at a negotiating table would glance from lobbyist to staff member, from colleague to former colleague, from pig to man and from man to pig and find it impossible to say which is which.

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In Reversal, Florida to Take Health Law’s Medicaid Expansion

MIAMI — Gov. Rick Scott of Florida reversed himself on Wednesday and announced that he would expand his state’s Medicaid program to cover the poor, becoming the latest — and, perhaps, most prominent — Republican critic of President Obama’s health care law to decide to put it into effect.

It was an about-face for Mr. Scott, a former businessman who entered politics as a critic of Mr. Obama’s health care proposals. Florida was one of the states that sued to try to block the law. After the Supreme Court ruled last year that though the law was constitutional, states could choose not to expand their Medicaid programs to cover the poor, Mr. Scott said that Florida would not expand its programs.

Mr. Scott said Wednesday that he now supported a three-year expansion of Medicaid, through the period that the federal government has agreed to pay the full cost of the expansion, and before some of the costs are shifted to the states.

“While the federal government is committed to paying 100 percent of the cost, I cannot in good conscience deny Floridians that needed access to health care,” Mr. Scott said at a news conference. “We will support a three-year expansion of the Medicaid program under the new health care law as long as the federal government meets their commitment to pay 100 percent of the cost during that time.”

He said there were “no perfect options” when it came to the Medicaid expansion. “To be clear: our options are either having Floridians pay to fund this program in other states while denying health care to our citizens,” he said, “or using federal funding to help some of the poorest in our state with the Medicaid program as we explore other health care reforms.”

Mr. Scott said the state would not create its own insurance exchange to comply with another provision of the law.

His reversal sent ripples through the nation, especially given the change in tone and substance since the summer, when he said he would not create an exchange or expand Medicaid.

“Floridians are interested in jobs and economic growth, a quality education for their children, and keeping the cost of living low,” Mr. Scott said in a statement at the time. “Neither of these major provisions in Obamacare will achieve those goals, and since Florida is legally allowed to opt out, that’s the right decision for our citizens.”

Mr. Scott now joins the Republican governors of Arizona, Michigan, Nevada, New Mexico, North Dakota and Ohio, who have decided to join the Medicaid expansion. Some, like Gov. Jan Brewer of Arizona, were also staunch opponents of Mr. Obama’s overall health care law.

Shortly before his announcement, the governor received word from the federal government that it planned to grant Florida the final waiver needed to privatize Medicaid, a process the state initially undertook as a pilot project. Mr. Scott, who is running for re-election next year, has heavily lobbied for the waiver, arguing that Florida could not expand Medicaid without it.

Mr. Scott’s support of Medicaid expansion is significant, but is far from the last word. The program requires approval from Florida’s Republican-dominated Legislature, which has been averse to expanding Medicaid under the health care law. The Legislature’s two top Republican leaders said that before making a decision they would consider recommendations from a select committee, which has been asked to review the state’s options.

“The Florida Legislature will make the ultimate decision,” Will Weatherford, the state House speaker, said. “I am personally skeptical that this inflexible law will improve the quality of health care in our state and ensure our long-term financial stability.”

Medicaid, which covers three million people in Florida, costs the state $21 billion a year. The expansion would extend coverage to one million more people.

Mr. Scott’s reversal is sure to anger his original conservative supporters.

The governor “was elected because of his principled conservative leadership against Obamacare’s overreach,” said Slade O’Brien, state director for Americans for Prosperity, an influential conservative advocacy organization. “Hopefully our legislative leaders will not follow in Governor Scott’s footsteps, and will reject expansion.”

During his announcement on Wednesday, Mr. Scott said his mother’s recent death and her lifetime struggle to raise five children “with very little money” played a role in his decision.

“Losing someone so close to you puts everything in a new perspective, especially the big decisions,” he said.

Michael Cooper contributed reporting from New York.

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In Reversal, Florida to Take Health Law’s Medicaid Expansion

MIAMI — Gov. Rick Scott of Florida reversed himself on Wednesday and announced that he would expand his state’s Medicaid program to cover the poor, becoming the latest — and, perhaps, most prominent — Republican critic of President Obama’s health care law to decide to put it into effect.

It was an about-face for Mr. Scott, a former businessman who entered politics as a critic of Mr. Obama’s health care proposals. Florida was one of the states that sued to try to block the law. After the Supreme Court ruled last year that though the law was constitutional, states could choose not to expand their Medicaid programs to cover the poor, Mr. Scott said that Florida would not expand its programs.

Mr. Scott said Wednesday that he now supported a three-year expansion of Medicaid, through the period that the federal government has agreed to pay the full cost of the expansion, and before some of the costs are shifted to the states.

“While the federal government is committed to paying 100 percent of the cost, I cannot in good conscience deny Floridians that needed access to health care,” Mr. Scott said at a news conference. “We will support a three-year expansion of the Medicaid program under the new health care law as long as the federal government meets their commitment to pay 100 percent of the cost during that time.”

He said there were “no perfect options” when it came to the Medicaid expansion. “To be clear: our options are either having Floridians pay to fund this program in other states while denying health care to our citizens,” he said, “or using federal funding to help some of the poorest in our state with the Medicaid program as we explore other health care reforms.”

Mr. Scott said the state would not create its own insurance exchange to comply with another provision of the law.

His reversal sent ripples through the nation, especially given the change in tone and substance since the summer, when he said he would not create an exchange or expand Medicaid.

“Floridians are interested in jobs and economic growth, a quality education for their children, and keeping the cost of living low,” Mr. Scott said in a statement at the time. “Neither of these major provisions in Obamacare will achieve those goals, and since Florida is legally allowed to opt out, that’s the right decision for our citizens.”

Mr. Scott now joins the Republican governors of Arizona, Michigan, Nevada, New Mexico, North Dakota and Ohio, who have decided to join the Medicaid expansion. Some, like Gov. Jan Brewer of Arizona, were also staunch opponents of Mr. Obama’s overall health care law.

Shortly before his announcement, the governor received word from the federal government that it planned to grant Florida the final waiver needed to privatize Medicaid, a process the state initially undertook as a pilot project. Mr. Scott, who is running for re-election next year, has heavily lobbied for the waiver, arguing that Florida could not expand Medicaid without it.

Mr. Scott’s support of Medicaid expansion is significant, but is far from the last word. The program requires approval from Florida’s Republican-dominated Legislature, which has been averse to expanding Medicaid under the health care law. The Legislature’s two top Republican leaders said that before making a decision they would consider recommendations from a select committee, which has been asked to review the state’s options.

“The Florida Legislature will make the ultimate decision,” Will Weatherford, the state House speaker, said. “I am personally skeptical that this inflexible law will improve the quality of health care in our state and ensure our long-term financial stability.”

Medicaid, which covers three million people in Florida, costs the state $21 billion a year. The expansion would extend coverage to one million more people.

Mr. Scott’s reversal is sure to anger his original conservative supporters.

The governor “was elected because of his principled conservative leadership against Obamacare’s overreach,” said Slade O’Brien, state director for Americans for Prosperity, an influential conservative advocacy organization. “Hopefully our legislative leaders will not follow in Governor Scott’s footsteps, and will reject expansion.”

During his announcement on Wednesday, Mr. Scott said his mother’s recent death and her lifetime struggle to raise five children “with very little money” played a role in his decision.

“Losing someone so close to you puts everything in a new perspective, especially the big decisions,” he said.

Michael Cooper contributed reporting from New York.

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Some Victims of Online Hacking Edge Into the Light

Steve Ruark for The New York Times

Alan Paller of the SANS Institute said recently hacked companies were seeking safety in numbers.

SAN FRANCISCO — Hackers have hit thousands of American corporations in the last few years, but few companies ever publicly admit it. Most treat online attacks as a dirty secret best kept from customers, shareholders and competitors, lest the disclosure sink their stock price and tarnish them as hapless.

Rarely have companies broken that silence, usually when the attack is reported by someone else. But in the last few weeks more companies have stepped forward. Twitter, Facebook and Apple have all announced that they were attacked by sophisticated cybercriminals. The New York Times revealed its experience with hackers in a front-page article last month.

The admissions reflect the new way some companies are calculating the risks and benefits of going public. While companies once feared shareholder lawsuits and the ire of the Chinese government, some can’t help noticing that those that make the disclosures are lauded, as Google was, for their bravery. Some fear the embarrassment of being unable to fend off hackers who may still be in high school.

But as hacking revelations become more common, the threat of looking foolish fades and more companies are seizing the opportunity to take the leap in a crowd.

“There is a ‘hide in the noise’ effect right now,” said Alan Paller, director of research at the SANS Institute, a nonprofit security research and education organization. “This is a particularly good time to get out the fact that you got hacked, because if you are one of many, it discounts the starkness of the announcement.”

In 2010, when Google alerted some users of Gmail — political activists, mostly — that it appeared Chinese hackers were trying to read their mail, such disclosures were a rarity. In its announcement, Google said that it was one of many — two dozen — companies that had been targeted by the same group. Google said it was making the announcement, in part, to encourage other companies to open up about the problem.

But of that group, only Intel and Adobe Systems reluctantly stepped forward, and neither provided much detail.

Twitter admitted that it had been hacked this month. Facebook and Apple followed suit two weeks later. Within hours after The Times published its account, The Wall Street Journal chimed in with a report that it, too, had been attacked by what it believed to be Chinese hackers. The Washington Post followed.

Not everyone took advantage of the cover. Bloomberg, for example, has repeatedly denied that its systems were also breached by Chinese hackers, despite several sources that confirmed that its computers were infected with malware.

Computer security experts estimate that more than a thousand companies have been attacked recently. In 2011, security researchers at McAfee unearthed a vast online espionage campaign, called Operation Shady Rat, that found more than 70 organizations had been hit over a five-year period, many in the United States.

“I am convinced that every company in every conceivable industry with significant size and valuable intellectual property and trade secrets has been compromised (or will be shortly) with the great majority of the victims rarely discovering the intrusion or its impact,” Dmitri Alperovitch, then McAfee’s vice president for threat research, wrote in his findings.

“In fact,” said Mr. Alperovitch, now the chief technology officer at Crowdstrike, a security start-up, “I divide the entire set of Fortune Global 2000 firms into two categories: those that know they’ve been compromised and those that don’t yet know.”

Of that group, there are still few admissions. A majority of companies that have at one time or another been the subject of news reports of online attacks refuse to confirm them. The list includes the International Olympic Committee, Exxon Mobil, Baker Hughes, Royal Dutch Shell, BP, ConocoPhillips, Chesapeake Energy, the British energy giant BG Group, the steel maker ArcelorMittal and Coca-Cola.

David E. Sanger contributed reporting from Washington.

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IHT Rendezvous: IHT Quick Read: Feb. 21

NEWS In a little-noticed trial in a small courtroom in Cyprus, a 24-year-old man provided a rare look inside a covert global war between Israel and Iran, admitting that he is an operative of the militant group Hezbollah, for which he acted as a courier in Europe and staked out locations that Israelis were known to frequent. Nicholas Kulish reports from Limassol, Cyprus.

The chief executive of an American tire company touched off a furor in France on Wednesday as he responded to a government plea to take over a Goodyear factory slated for closing in northern France. Liz Alderman reports from Paris.

A potentially lucrative market beckons Iceland if the country can find a way to export and transmit electricity across 1,000 miles of frigid sea to the European Union. Andrew Higgins reports from Krafla, Iceland.

China considered using a drone strike in a mountainous region of Southeast Asia to kill a Myanmar drug lord wanted in the murders of 13 Chinese sailors, but decided instead to capture him alive, according to an influential state-run newspaper. Jane Perlez reports from Beijing.

The recent flooding in Jakarta has exposed the city’s weak infrastructure and provided a test for its new leader, Joko Widodo. Sara Schonhardt reports from Jakarta.

The Daily Mail set out after the British historical novelist Hilary Mantel for what the tabloid said was “an astonishing and venomous attack” on the Duchess of Cambridge. John Burns reports from London.

Spain is no longer under imminent threat from financial markets, Prime Minister Mariano Rajoy told lawmakers Wednesday, but instead is on track to repair its public finances, as shown by an “unprecedented” decline in its budget deficit last year. Raphael Minder reports from Madrid.

Promises of lower taxes and tax amnesties have taken hold among many of Italy’s party parties as a key election looms. Elisabetta Povoledo reports from Rome.

President Obama hopes to introduce an emissions trading system in the United States, but a similar scheme in Europe has not had the intended effect of encouraging companies to reduce pollutants. Stanley Reed reports from London.

Porto Nuova, a large redevelopment in Milan with 30 skyscrapers, a giant park and other amenities, will soon have new shops for some of the city’s best-known fashion labels. J J. Martin reports from Milan.

ARTS The Jewish Museum of Vienna has come under fire for its delay in returning many items looted by the Nazis. Patricia Cohen reports.

SPORTS Giampaolo Pozzo owns soccer teams in Italy, Spain and England, with players shuttling back and forth. That method has brought success to Watford, the English club. Rob Hughes writes from London.

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Boeing Engineers Approve Pact, but Tech Workers Say No

SEATTLE (AP) — The union representing Boeing Co.'s engineers and technical workers delivered a split decision on a new contract Tuesday, with the engineers accepting their offer and the technical workers rejecting theirs and authorizing a future strike.

The union had recommended that both units reject the contract offer because it would not provide pensions to new employees. They would have a 401k retirement plan instead.

The union called that unacceptable, but the Chicago-based airplane-maker said the change was important to the company's future.

The vote came as the company is trying to solve battery problems that have grounded its new 787s. The engineers and technical workers in the union work on plans for new planes and solve problems that arise on the factory floor.

While a strike by the technical workers is not imminent, the vote means the negotiating team can call one at any time, said Bill Dugovich, spokesman for the Society of Professional Engineering Employees in Aerospace.

The engineers' vote means those 15,500 employees have a new four-year contract in place, Dugovich said. Union negotiators hope to resume contract talks soon on behalf of the 7,400 technical workers, he said.

Boeing Commercial Airplanes President and CEO Ray Conner said in a statement that the company was pleased with the engineers' vote but "deeply disappointed" in the technical workers' rejection of what he called the company's "best and final" offer.

"The realities of the market require us to make changes so we can invest in new products and keep winning in this competitive environment ..." Conner said in his statement. "That's why our proposal to move future hires to an enhanced 401(k)-style retirement plan is so important, as we have repeatedly emphasized over the course of these negotiations."

Union members rejected one previous contract offer in October. SPEEA last went on strike for 40 days in 2000.

"With this second rejection by technical workers of Boeing takeaways, it's time for the company to stop wasting resources and improve its offer to reflect the value and contributions technical workers bring to Boeing," SPEEA Executive Director Ray Goforth said in a statement. "That way, we can avoid a strike and focus on fixing the problems of the 787 and restoring customer confidence in Boeing."

The latest labor unrest is happening as U.S. regulators launch an open-ended review of the 787's design and construction. Last month, a battery on a parked 787 caught fire in Boston. On Jan. 16, another 787 made an emergency landing in Japan after another battery problem.

All 50 787s that Boeing had delivered so far are grounded until the issue is resolved.

The union's nearly 23,000 employees are mostly in the Puget Sound region. Union leaders believe a strike would shut down Boeing production lines in Everett, Wash., where its big planes are made, as well as in Renton, Wash., where it cranks out the widely used 737.

The factory-floor assembly work is done by the members of the International Association of Machinists. The Machinists approved a new, four-year contract in December 2011, after a walkout in 2008 that contributed to a 3½-year delay in delivering the first 787.

It was also a factor in Boeing opening a plant in South Carolina, where laws make it more difficult to unionize.

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Well: No Consensus on Plantar Fasciitis

Phys Ed

Gretchen Reynolds on the science of fitness.

There are more charismatic-sounding sports injuries than plantar fasciitis, like tennis elbow, runner’s knee and turf toe. But there aren’t many that are more common. The condition, characterized by stabbing pain in the heel or arch, sidelines up to 10 percent of all runners, as well as countless soccer, baseball, football and basketball players, golfers, walkers and others from both the recreational and professional ranks. The Lakers star Kobe Bryant, the quarterback Eli Manning, the Olympic marathon runner Ryan Hall and the presidential candidate Mitt Romney all have been stricken.

But while plantar fasciitis is democratic in its epidemiology, its underlying cause remains surprisingly enigmatic. In fact, the mysteries of plantar fasciitis underscore how little is understood, medically, about overuse sports injuries in general and why, as a result, they remain so insidiously difficult to treat.

Experts do agree that plantar fasciitis is, essentially, an irritation of the plantar fascia, a long, skinny rope of tissue that runs along the bottom of the foot, attaching the heel bone to the toes and forming your foot’s arch. When that tissue becomes irritated, you develop pain deep within the heel. The pain is usually most pronounced first thing in the morning, since the fascia tightens while you sleep.

But scientific agreement about the condition and its causes ends about there.

For many years, “most of us who treat plantar fasciitis believed that it involved chronic inflammation” of the fascia, said Dr. Terrence M. Philbin, a board-certified orthopedic surgeon at the Orthopedic Foot and Ankle Center in Westerville, Ohio, who specializes in plantar fasciitis.

It was thought that by running or otherwise repetitively pounding their heels against the ground, people strained the plantar fascia, and the body responded with a complex cascade of inflammatory biochemical processes that resulted in extra blood and fluids flowing to the injury site, as well as enhanced pain sensitivity.

But instead of lasting only a few days and then fading, as acute inflammation usually does, the process can become chronic and create its own problems, causing tissue damage and continuing pain.

This progression is also what experts believed was happening when people developed chronic Achilles tendon pain, tennis elbow or other lingering, overuse injuries.

But when scientists actually biopsied fascia tissue from people with chronic plantar fasciitis, “they did not find much if any inflammation,” Dr. Philbin said. There were virtually none of the cellular markers that characterize that condition.

“Plantar fasciitis does not involve inflammatory cells,” said Dr. Karim Khan, a professor of family practice medicine at the University of British Columbia and editor of The British Journal of Sports Medicine, who has written extensively about overuse sports injuries.

Instead, plantar fasciitis more likely is caused by degeneration or weakening of the tissue. This process probably begins with small tears that occur during activity and that, in normal circumstances, the body simply repairs, strengthening the tissue as it does. That is the point of exercise training.

But sometimes, for unknown reasons, this ongoing tissue damage overwhelms the body’s capacity to respond. The small tears don’t heal. They accumulate. The tissue begins subtly to degenerate, even to shred. It hurts.

By and large, most sports medicine experts now believe that this is how we develop other overuse injuries, like tennis elbow or Achilles tendinopathy, which used to be called tendinitis. The suffix “itis” means inflammation. But since the injury isn’t thought to involve chronic inflammation, its name has changed.

This has not yet happened with plantar fasciitis, and may not, given what a mouthful fasciopathy would be.

The evolving medical opinions about plantar fasciitis matter, beyond nomenclature, though, because treatments depend on causes. At the moment, many physicians rely on injections of cortisone, a steroid that is both a pain reliever and anti-inflammatory, to treat plantar fasciitis. And cortisone shots do reduce the soreness. In a study published last year in BMJ, patients who received cortisone injections reported less heel pain after four months than those whose shots had contained a placebo saline solution.

But whether those benefits will last is unknown, especially if plantar fasciitis is, indeed, degenerative. In studies with people suffering from tennis elbow, another injury that is now considered degenerative, cortisone shots actually slowed tissue healing.

We need similar studies in people with plantar fasciitis, Dr. Khan said. “They have not been done.”

Thankfully, most people who develop plantar fasciitis will recover within a few months without injections or other invasive treatments, Dr. Philbin said, if they simply back off their running mileage somewhat or otherwise rest the foot and stretch the affected tissues. Stretching the plantar fascia, as well as the Achilles tendon, which also attaches to the heel bone, and the hamstring muscles seems to result in less strain on the fascia during activity, meaning less ongoing trauma and, eventually, time for the body to catch up with repairs.

To ensure that you are stretching correctly, Dr. Philbin suggests consulting a physical therapist, after, of course, visiting a sports medicine doctor for a diagnosis. Not all heel or arch pain is plantar fasciitis. And comfort yourself if you do have the condition with the knowledge that Kobe Bryant, Eli Manning and Ryan Hall have all returned to competition and Mr. Romney still runs.

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Well: No Consensus on Plantar Fasciitis

Phys Ed

Gretchen Reynolds on the science of fitness.

There are more charismatic-sounding sports injuries than plantar fasciitis, like tennis elbow, runner’s knee and turf toe. But there aren’t many that are more common. The condition, characterized by stabbing pain in the heel or arch, sidelines up to 10 percent of all runners, as well as countless soccer, baseball, football and basketball players, golfers, walkers and others from both the recreational and professional ranks. The Lakers star Kobe Bryant, the quarterback Eli Manning, the Olympic marathon runner Ryan Hall and the presidential candidate Mitt Romney all have been stricken.

But while plantar fasciitis is democratic in its epidemiology, its underlying cause remains surprisingly enigmatic. In fact, the mysteries of plantar fasciitis underscore how little is understood, medically, about overuse sports injuries in general and why, as a result, they remain so insidiously difficult to treat.

Experts do agree that plantar fasciitis is, essentially, an irritation of the plantar fascia, a long, skinny rope of tissue that runs along the bottom of the foot, attaching the heel bone to the toes and forming your foot’s arch. When that tissue becomes irritated, you develop pain deep within the heel. The pain is usually most pronounced first thing in the morning, since the fascia tightens while you sleep.

But scientific agreement about the condition and its causes ends about there.

For many years, “most of us who treat plantar fasciitis believed that it involved chronic inflammation” of the fascia, said Dr. Terrence M. Philbin, a board-certified orthopedic surgeon at the Orthopedic Foot and Ankle Center in Westerville, Ohio, who specializes in plantar fasciitis.

It was thought that by running or otherwise repetitively pounding their heels against the ground, people strained the plantar fascia, and the body responded with a complex cascade of inflammatory biochemical processes that resulted in extra blood and fluids flowing to the injury site, as well as enhanced pain sensitivity.

But instead of lasting only a few days and then fading, as acute inflammation usually does, the process can become chronic and create its own problems, causing tissue damage and continuing pain.

This progression is also what experts believed was happening when people developed chronic Achilles tendon pain, tennis elbow or other lingering, overuse injuries.

But when scientists actually biopsied fascia tissue from people with chronic plantar fasciitis, “they did not find much if any inflammation,” Dr. Philbin said. There were virtually none of the cellular markers that characterize that condition.

“Plantar fasciitis does not involve inflammatory cells,” said Dr. Karim Khan, a professor of family practice medicine at the University of British Columbia and editor of The British Journal of Sports Medicine, who has written extensively about overuse sports injuries.

Instead, plantar fasciitis more likely is caused by degeneration or weakening of the tissue. This process probably begins with small tears that occur during activity and that, in normal circumstances, the body simply repairs, strengthening the tissue as it does. That is the point of exercise training.

But sometimes, for unknown reasons, this ongoing tissue damage overwhelms the body’s capacity to respond. The small tears don’t heal. They accumulate. The tissue begins subtly to degenerate, even to shred. It hurts.

By and large, most sports medicine experts now believe that this is how we develop other overuse injuries, like tennis elbow or Achilles tendinopathy, which used to be called tendinitis. The suffix “itis” means inflammation. But since the injury isn’t thought to involve chronic inflammation, its name has changed.

This has not yet happened with plantar fasciitis, and may not, given what a mouthful fasciopathy would be.

The evolving medical opinions about plantar fasciitis matter, beyond nomenclature, though, because treatments depend on causes. At the moment, many physicians rely on injections of cortisone, a steroid that is both a pain reliever and anti-inflammatory, to treat plantar fasciitis. And cortisone shots do reduce the soreness. In a study published last year in BMJ, patients who received cortisone injections reported less heel pain after four months than those whose shots had contained a placebo saline solution.

But whether those benefits will last is unknown, especially if plantar fasciitis is, indeed, degenerative. In studies with people suffering from tennis elbow, another injury that is now considered degenerative, cortisone shots actually slowed tissue healing.

We need similar studies in people with plantar fasciitis, Dr. Khan said. “They have not been done.”

Thankfully, most people who develop plantar fasciitis will recover within a few months without injections or other invasive treatments, Dr. Philbin said, if they simply back off their running mileage somewhat or otherwise rest the foot and stretch the affected tissues. Stretching the plantar fascia, as well as the Achilles tendon, which also attaches to the heel bone, and the hamstring muscles seems to result in less strain on the fascia during activity, meaning less ongoing trauma and, eventually, time for the body to catch up with repairs.

To ensure that you are stretching correctly, Dr. Philbin suggests consulting a physical therapist, after, of course, visiting a sports medicine doctor for a diagnosis. Not all heel or arch pain is plantar fasciitis. And comfort yourself if you do have the condition with the knowledge that Kobe Bryant, Eli Manning and Ryan Hall have all returned to competition and Mr. Romney still runs.

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Bits Blog: Tech Predictions for 2013: It's All About Mobile

If there is one theme that will be the topic of digital business this year, it is mobile.

ComScore, which tracks Web and mobile usage, published a report about what happened in 2012, and what to expect in 2013.

It shows that the effects of a movement toward mobile are everywhere, from shopping to media to search. According to the report, “2013 could spell a very rocky economic transition,” and businesses will have to scramble to stay ahead of consumers’ changing behavior.

Here are a few interesting tidbits from the 48-page report.

The mobile transition is happening astonishingly quickly. Last year, smartphone penetration crossed 50 percent for the first time, led by Android phones. People spend 63 percent of their time online on desktop computers and 37 percent on mobile devices, including smartphones and tablets, according to comScore.

Just as they compete on computers, Facebook and Google are dominant and at each other’s throats on phones.

Google’s map app for the iPhone, which had been the most used mobile app, lost its No. 1 spot to Facebook after Apple kicked Google’s maps off the iPhone in October. Now, Facebook reaches 76 percent of the smartphone market and accounts for 23 percent of total time spent using apps each month. The next five most used apps are Google’s, which account for 10 percent of time on apps.

As mobile continues to take share from desktop, some industries have been particularly affected, and they are seeing significant declines in desktop use of their products as a result. They are newspapers, search engines, maps, weather, comparison shopping, directories and instant messenger services.

The most visited Web sites are not so surprising: Google, Yahoo, Microsoft, Facebook and Amazon. Facebook continues to take up most of our time online.

But there were a few surprises from younger, smaller Web companies. Tumblr was No. 8 on the list of sites, ordered by time spent on them. And several Web sites were breakout hits last year, as measured by growth and visitor numbers: Spotify (music), Dropbox (online storage), Etsy (shopping), BuzzFeed (news), JustFab (shopping), SoundCloud (music) and BusinessInsider (news).

Search, one of the biggest and most reliable Web industries, is at a crossroads, comScore said. Even though the search market continues to be extraordinarily profitable, there is a desire for it to evolve and offer new services to users.

Here is some evidence: Searches on traditional search engines, dominated by Google, declined 3 percent last year, and the number of searches per searcher declined 7 percent. Yet searches on specialty sites, known as vertical search engines, like Amazon.com or Whitepages.com, climbed 8 percent.

Social search, based on what users’ friends like, has put Facebook and Google on a “collision course,” comScore said, particularly in searches for local businesses like restaurants.

In social networking, the visual Web, as comScore calls it, has transformed the landscape. Pinterest, Tumblr and Instagram, all of which emphasize images, each gained more than 10 million visitors last year.

Last year was also pivotal for online video, comScore said, as viewers increasingly seek the ability to watch video when and where they want. Watching TV shows online helped last year break viewing records, especially during the Olympics.

In the United States, 75 million people a day watch online video and stream 40 billion videos a month, and viewing is driven by YouTube.

There has also been a turning point for video ads. They cost more than typical ads, and have always lagged behind viewership. But in 2012, 23 percent of videos were accompanied by an ad, up from 14 percent the year before. More TV ad dollars are coming to online video, comScore concluded.

Though e-commerce spending grew 13 percent last year, it was a disappointing holiday season online, largely because of economic pressures. Purchasing on mobile phones is beginning to make a dent in e-commerce, comScore said, with mobile shopping accounting for 11 percent of e-commerce in the fourth quarter of 2012, up from 3 percent in the period two years earlier.

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