Dismissed as Doomsayers, Advocates for Meteor Detection Feel Vindicated

For decades, scientists have been on the lookout for killer objects from outer space that could devastate the planet. But warnings that they lacked the tools to detect the most serious threats were largely ignored, even as skeptics mocked the worriers as Chicken Littles.

Jim Watson/Agence France-Presse — Getty Images

Dr. Edward Lu, a former NASA astronaut and Google executive, has warned about space threats.

No more. The meteor that rattled Siberia on Friday, injuring hundreds of people and traumatizing thousands, has suddenly brought new life to efforts to deploy adequate detection tools, in particular a space telescope that would scan the solar system for dangers.

A group of young Silicon Valley entrepreneurs who helped build thriving companies like eBay, Google and Facebook has already put millions of dollars into the effort and saw Friday’s shock wave as a turning point in raising hundreds of millions more.

“Wouldn’t it be silly if we got wiped out because we weren’t looking?” said Edward Lu, a former NASA astronaut and Google executive who leads the detection effort. “This is a wake-up call from space. We’ve got to pay attention to what’s out there.”

Astronomers know of no asteroids or comets that pose a major threat to the planet. But NASA estimates that fewer than 10 percent of the big dangers have been discovered.

Dr. Lu’s group, called the B612 Foundation after the imaginary asteroid on which the Little Prince lived, is one team of several pursuing ways to ward off extraterrestrial threats. NASA is another, and other private groups are emerging, like Planetary Resources, which wants not only to identify asteroids near Earth but also to mine them.

“Our job is to be the first line of defense, and we take that very seriously,” James Green, the director of planetary science at NASA headquarters, said in an interview Friday after the Russian strike. “No one living on this planet has ever before been hurt. That’s historic.”

Dr. Green added that the Russian episode was sure to energize the field and that an even analysis of the meteor’s remains could help reveal clues about future threats.

“Our scientists are excited,” he said. “Russian planetary scientists are already collecting meteorites from this event.”

The slow awakening to the danger began long ago, as scientists found hundreds of rocky scars indicating that cosmic intruders had periodically reshaped the planet.

The discoveries included not just obvious features like Meteor Crater in Arizona, but wide zones of upheaval. A crater more than a hundred miles wide beneath the Yucatán Peninsula in Mexico suggested that, 65 million years ago, a speeding rock from outer space had raised enough planetary mayhem to end the reign of the dinosaurs.

Some people remain skeptical of the cosmic threat and are glad for taxpayer money to go toward urgent problems on Earth rather than outer space. But many scientists who have examined the issues have become convinced that better precautions are warranted in much the same way that homeowners buy insurance for unlikely events that can result in severe damage to life and property.

Starting in the 1980s and 1990s, astronomers turned their telescopes on the sky with increasing vigor to look for killer rocks. The rationale was statistical. They knew about a number of near misses and calculated that many other rocky threats whirling about the solar system had gone undetected.

In 1996, with little fanfare, the Air Force also began scanning the skies for speeding rocks, giving credibility to an activity once seen as reserved for doomsday enthusiasts. It was the world’s first known government search.

The National Aeronautics and Space Administration took a lead role with what it called the Spaceguard Survey. In 2007, it issued a report estimating that 20,000 asteroids and comets orbited close enough to the planet to deliver blows that could destroy cities or even end all life. Today, with limited financing, NASA supports modest telescopes in the southwestern United States and in Hawaii that make more than 95 percent of the discoveries of the objects coming near the Earth.

Scientists lobbied hard for a space telescope that would get high above the distorting effects of the Earth’s atmosphere. It would orbit the Sun, peering across the solar system, and would have a much better chance of finding large space rocks.

But with the nation immersed in two wars and other earthly priorities, the government financing never materialized. Last year, Dr. Lu, who left the NASA astronaut corps in 2007 to work for Google, joined with veterans of the space program and Silicon Valley entrepreneurs to accelerate the asteroid hunt.

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U.S. Embassy Denies Intervening in Mexico Cabinet Choice

The United States Embassy in Mexico on Friday issued a statement denying an article in The New York Times that reported that Ambassador Anthony Wayne had met with senior Mexican officials to discuss American concerns about the possible appointment of Gen. Moisés García Ochoa of Mexico as that country’s defense secretary.

“Despite significant reporting in the Mexican press during the presidential transition about the potential candidates to head Mexico’s military,” the statement read, “Ambassador Wayne did not discuss Gen. Moisés García Ochoa with Miguel Ángel Osorio Chong, now secretary of government, or Jorge Carlos Ramírez Marín, now secretary for agrarian, territorial and urban development (SEDATU), as reported in the New York Times story.”

The embassy’s statement comes 11 days after the Times article about Washington’s exchanges with Mexico regarding General García Ochoa. It follows an avalanche of outrage in the Mexican news media, whose columnists and commentators have accused the United States of “vetoing” General García’s nomination and of infringing on Mexican sovereignty. Some in the news media have called on Mexico’s new president, Enrique Peña Nieto, to rethink the terms of his government’s cooperation with the Obama administration on security matters.

The embassy statement on Friday also came after an earlier statement by William Ostick, a State Department spokesman, that did not dispute the facts in the Times’ account.

On Feb. 4, The Times reported that some senior American officials suspected General García Ochoa of skimming money from multimillion-dollar defense contracts. It reported that the Drug Enforcement Administration suspected the general of having links to drug traffickers dating back to the late 1990s. And the newspaper reported that Ambassador Wayne discussed those concerns with Mexican officials.

In the end, General García Ochoa was passed over for his government’s top military job. The Times reported that it was unclear whether American concerns played a role in Mexico’s decision.

The Mexican government made no statement to The Times on the article. But Mr. Osorio Chong denied to Mexican newspapers that the United States had vetoed or made suggestions on any appointment, and Mr. Ramírez Marín has told Mexican reporters that while he and Mr. Chong were present at a meeting with the ambassador before the inauguration to discuss relations, the general’s possible appointment was not discussed.

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Different looks for Heat, Lakers at All-Star break

HOUSTON (AP) — The last All-Star game in Houston was a glimpse of what Miami Heat games would become.

LeBron James scored 29 points and was the MVP. Dwyane Wade added 20 and made the go-ahead basket to cap a huge comeback, and the Eastern Conference beat the West 122-120 in 2006.

"I had a pretty good experience the first time around, looking for the same thing this time," Wade said Friday.

The way things are going for the Heat, why not?

And think about this: James was already the best player that night, and he was nowhere near the player he is today.

"I'm a better player. At that point in time, I wasn't a complete basketball player. I couldn't shoot as well as I can now, I never posted up back then," James said. "More games, more playoff games, more knowledge. You continue to learn each and every day, it makes you a better player. That's what you want, to become a better player. That's what I want. I want to be the greatest of all-time. I try to do whatever it takes to get me in that position.

"Seven years, I've tried to improve each and every year."

Back where they first teamed up as All-Stars, Wade, James and Chris Bosh will start together for the East on Sunday night, another highlight for the NBA champions.

Kobe Bryant, Dwight Howard and the Los Angeles Lakers aren't having nearly as much fun in a season so disappointing that Bryant was asked Friday if the All-Star weekend was a "retreat" for him.

"I don't know if it's a retreat, it's just more of an opportunity to get some rest, regroup, put the first half of the season behind us and move on," he said.

As Wade knows, the All-Star break can be just that — a break — from a forgettable season.

He arrived for the 2008 All-Star game with a 9-43 record after the Heat lost on Valentine's Day to the Chicago Bulls, on their way to a 15-win debacle just two years after they won the NBA title.

"I put all that aside, though, and I came and I enjoyed the weekend, and when I went back to Miami, it was like, 'Oh my God, we're back in it,'" Wade said. "But All-Star weekend, you just enjoy being an All-Star. You enjoy being around the guys. You can kind of forget about that a little bit, unless you have the cameras and the microphones in front of you asking you questions about it, but besides that you try to enjoy it."

This time, the Heat celebrated Valentine's Day in Oklahoma City with a 110-100 victory over the Thunder, the team they beat in five games last summer for the title. They have won seven in a row, James is playing arguably the best basketball of his career, and they can relax and reminisce as they return to Houston.

"It's really indescribable," Bosh said, "just to not only win a championship with great guys, be in a great locker room, and just to have fun doing it, but just to be an All-Star every year, play with great teammates. I mean to play in front of a lot people in arenas every night. I don't take those things for granted."

James just ran off an NBA-record six straight games with at least 30 points and 60 percent shooting from the field, and seems to be distancing himself from anyone else that can take the MVP award he won last year for the third time in four years.

"He's doing well," Bosh said in a Texas-sized understatement. "That's the best way to put it."

Bosh was chosen as a starter Friday by Heat coach Erik Spoelstra, who will lead the East. He replaces Boston guard Rajon Rondo, who pulled out with a torn ACL.

Bryant and Howard are still here, away from a Los Angeles season that's been anything but a Hollywood story.

Considered a title contender after acquiring Howard and Steve Nash in the summer, the Lakers fell to 25-29 after they were blown out Wednesday by the rival Clippers, who opened a 13-game lead over them in the Pacific Division standings.

Smiling as he sat with his daughter, Natalia, Bryant laughed that he wished the All-Star break was a chance for the Lakers to "hit the reset button" on what he's said has been a most difficult season.

"Hopefully there's an easy button like in the commercial when we come back in the second half of the season and things are a little easier for us," he said.

Howard has battled injuries to his back and shoulder and has been nothing like the player who has been the NBA's dominant big man in recent years. He said at times he hasn't been having fun and has tried to ignore all the bad news around the team.

"You just try to stay away from the tube and do as much as I can to rehab my back and my shoulder and my mind, and really just get away from everything when I'm not playing basketball," he said.

If he's looking for a chance to enjoy himself this season, it may get no better than the next few days.

"It's a great weekend, it's an unbelievable weekend for the fans to be able to put all their favorite players together in one venue," James said. "We have a great time with it."

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Follow Brian Mahoney on Twitter: http://www.twitter.com/Briancmahoney

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Livestrong Tattoos as Reminder of Personal Connections, Not Tarnished Brand

As Jax Mariash went under the tattoo needle to have “Livestrong” emblazoned on her wrist in bold black letters, she did not think about Lance Armstrong or doping allegations, but rather the 10 people affected by cancer she wanted to commemorate in ink. It was Jan. 22, 2010, exactly a year since the disease had taken the life of her stepfather. After years of wearing yellow Livestrong wristbands, she wanted something permanent.

A lifelong runner, Mariash got the tattoo to mark her 10-10-10 goal to run the Chicago Marathon on Oct. 10, 2010, and fund-raising efforts for Livestrong. Less than three years later, antidoping officials laid out their case against Armstrong — a lengthy account of his practice of doping and bullying. He did not contest the charges and was barred for life from competing in Olympic sports.

“It’s heartbreaking,” Mariash, of Wilson, Wyo., said of the antidoping officials’ report, released in October, and Armstrong’s subsequent confession to Oprah Winfrey. “When I look at the tattoo now, I just think of living strong, and it’s more connected to the cancer fight and optimal health than Lance.”

Mariash is among those dealing with the fallout from Armstrong’s descent. She is not alone in having Livestrong permanently emblazoned on her skin.

Now the tattoos are a complicated, internationally recognized symbol of both an epic crusade against cancer and a cyclist who stood defiant in the face of accusations for years but ultimately admitted to lying.

The Internet abounds with epidermal reminders of the power of the Armstrong and Livestrong brands: the iconic yellow bracelet permanently wrapped around a wrist; block letters stretching along a rib cage; a heart on a foot bearing the word Livestrong; a mural on a back depicting Armstrong with the years of his now-stripped seven Tour de France victories and the phrase “ride with pride.”

While history has provided numerous examples of ill-fated tattoos to commemorate lovers, sports teams, gang membership and bands that break up, the Livestrong image is a complex one, said Michael Atkinson, a sociologist at the University of Toronto who has studied tattoos.

“People often regret the pop culture tattoos, the mass commodified tattoos,” said Atkinson, who has a Guns N’ Roses tattoo as a marker of his younger days. “A lot of people can’t divorce the movement from Lance Armstrong, and the Livestrong movement is a social movement. It’s very real and visceral and embodied in narrative survivorship. But we’re still not at a place where we look at a tattoo on the body and say that it’s a meaningful thing to someone.”

Geoff Livingston, a 40-year-old marketing professional in Washington, D.C., said that since Armstrong’s confession to Winfrey, he has received taunts on Twitter and inquiries at the gym regarding the yellow Livestrong armband tattoo that curls around his right bicep.

“People see it and go, ‘Wow,’ ” he said, “But I’m not going to get rid of it, and I’m not going to stop wearing short sleeves because of it. It’s about my family, not Lance Armstrong.”

Livingston got the tattoo in 2010 to commemorate his brother-in-law, who was told he had cancer and embarked on a fund-raising campaign for the charity. If he could raise $5,000, he agreed to get a tattoo. Within four days, the goal was exceeded, and Livingston went to a tattoo parlor to get his seventh tattoo.

“It’s actually grown in emotional significance for me,” Livingston said of the tattoo. “It brought me closer to my sister. It was a big statement of support.”

For Eddie Bonds, co-owner of Rabbit Bicycle in Hill City, S.D., getting a Livestrong tattoo was also a reflection of the growth of the sport of cycling. His wife, Joey, operates a tattoo parlor in front of their store, and in 2006 she designed a yellow Livestrong band that wraps around his right calf, topped off with a series of small cyclists.

“He kept breaking the Livestrong bands,” Joey Bonds said. “So it made more sense to tattoo it on him.”

“It’s about the cancer, not Lance,” Eddie Bonds said.

That was also the case for Jeremy Nienhouse, a 37-year old in Denver, Colo., who used a Livestrong tattoo to commemorate his own triumph over testicular cancer.

Given the diagnosis in 2004, Nienhouse had three rounds of chemotherapy, which ended on March 15, 2005, the date he had tattooed on his left arm the day after his five-year anniversary of being cancer free in 2010. It reads: “3-15-05” and “LIVESTRONG” on the image of a yellow band.

Nienhouse said he had heard about Livestrong and Armstrong’s own battle with the cancer around the time he learned he had cancer, which alerted him to the fact that even though he was young and healthy, he, too, could have cancer.

“On a personal level,” Nienhouse said, “he sounds like kind of a jerk. But if he hadn’t been in the public eye, I don’t know if I would have been diagnosed when I had been.”

Nienhouse said he had no plans to have the tattoo removed.

As for Mariash, she said she read every page of the antidoping officials’ report. She soon donated her Livestrong shirts, shorts and running gear. She watched Armstrong’s confession to Winfrey and wondered if his apology was an effort to reduce his ban from the sport or a genuine appeal to those who showed their support to him and now wear a visible sign of it.

“People called me ‘Miss Livestrong,’ ” Mariash said. “It was part of my identity.”

She also said she did not plan to have her tattoo removed.

“I wanted to show it’s forever,” she said. “Cancer isn’t something that just goes away from people. I wanted to show this is permanent and keep people remembering the fight.”

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Common Sense: High Taxes Are Not a Prime Reason for Relocation, Studies Say

Pool photo by Mikhail Klimentyev

Gerard Depardieu with Vladimir Putin in January. Russia granted Mr. Depardieu a passport after his spat with France over taxes.

Last month, Vladimir V. Putin hugged his newly minted fellow Russian citizen, the actor Gerard Depardieu, posing for cameras at the Black Sea port of Sochi. “I adore your country,” Mr. Depardieu gushed — especially its 13 percent flat tax on personal income.

Sochi may not be St. Tropez, but it does have winter temperatures in the 60s and even palm trees. Mr. Putin’s deputy prime minister confidently predicted a “mass migration of wealthy Europeans to Russia.”

Here in the United States, the three-time Masters champion Phil Mickelson recently walked off the 18th hole at Humana Challenge and said he might move from California because the state increased its top income tax rate to 13.3 percent from 10.3 percent.

“Hey Phil,” Gov. Rick Perry of Texas wrote in a Twitter message, “Texas is home to liberty and low taxes ... we would love to have you as well!!” Tiger Woods later said that he had left California for Florida for just that reason years ago. Mr. Mickelson can “vote with his Gulfstream,” a Wall Street Journal editorial noted, and warned California to “expect a continued migration.”

It’s an article of faith among low-tax advocates that income tax increases aimed at the rich simply drive them away. As Stuart Varney put it on Fox News: “Look at what happened in Britain. They raised the top tax rate to 50 percent, and two-thirds of the millionaires disappeared in the next tax year. Same things are happening in France. People are leaving where the top tax rate is 75 percent. Same thing happened in Maryland a few years ago. New millionaire’s tax, the millionaires disappeared. You’ve got exactly the same thing in California.”

That, at least, is what low-tax advocates want us to think, and on its face, it seems to make sense. But it’s not the case. It turns out that a large majority of people move for far more compelling reasons, like jobs, the cost of housing, family ties or a warmer climate. At least three recent academic studies have demonstrated that the number of people who move for tax reasons is negligible, even among the wealthy.

Cristobal Young, an assistant professor of sociology at Stanford, studied the effects of recent tax increases in New Jersey and California.

“It’s very clear that, over all, modest changes in top tax rates do not affect millionaire migration,” he told me this week. “Neither tax increases nor tax cuts on the rich have affected their migration rates.”

The notion of tax flight “is almost entirely bogus — it’s a myth,” said Jon Shure, director of state fiscal studies at the Center on Budget and Policy Priorities, a nonprofit research group in Washington. “The anecdotal coverage makes it seem like people are leaving in droves because of high taxes. They’re not. There are a lot of low-tax states, and you don’t see millionaires flocking there.”

Despite the allure of low taxes, Mr. Depardieu hasn’t been seen in Russia since picking up his passport and seems to be hedging his bets by maintaining a residence in Belgium. Meanwhile, Russian billionaires are snapping up trophy properties in high-tax London, New York and Beverly Hills, Calif.

“I don’t hear about many billionaires moving to Moscow,” said Robert Tannenwald, a lecturer in economic policy at Brandeis University and former Federal Reserve economist. Along with Nicholas Johnson, he and Mr. Shure are co-authors of “Tax Flight Is a Myth,” a 2011 research paper.

Of course, some people do move for tax reasons, especially wealthy retirees, athletes and other celebrities without strong ties to high-tax locations, like jobs and families. In renouncing his French citizenship, Mr. Depardieu follows other French celebrities, the chef Alain Ducasse, the singer Johnny Hallyday and Yannick Noah, a former tennis star. Several Paris hedge fund managers have decamped to London and the fashion mogul Bernard Arnault applied for Belgian citizenship, though not, he has said, for tax reasons.

Stars like Mr. Depardieu and Mr. Mickelson certainly have incentives to move. Mr. Depardieu complained that he paid 85 percent of his income in taxes in France last year and has paid 145 million euros over 45 years. France has a top rate of 41 percent as well as a wealth tax, and the Socialist president, François Hollande, is trying to impose a temporary surcharge of 75 percent on incomes over 1 million euros. Mr. Mickelson earned more than $60 million last year, Sports Illustrated estimates, which means the three-percentage-point California tax increase could add up to an additional $1.8 million in tax.

This article has been revised to reflect the following correction:

Correction: February 15, 2013

An earlier version of this column misstated Mr. Depardieu’s citizenship. He has applied for residency in Belgium; he is not a citizen of that nation. The earlier version also misidentified the golf tournament at which the golfer Phil Mickelson said he might move from California to escape its taxes. It was the Humana Challenge, not Pebble Beach.

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Meteorite Fragments Are Said to Rain Down on Siberia; 400 Injuries Reported

MOSCOW – A shower of falling objects, tentatively identified as fragments of a meteorite, streaked through the sky in western Siberia early on Friday, damaging buildings across a vast swath of territory. More than 400 people were reported to have been injured, most from breaking glass.

But hours after the objects fell to earth, emergency officials had reported no deaths.

Yelena Smirnykh, a spokeswoman for the Ministry of Emergency Situations, told Ekho Moskvy radio that she believed the meteorite broke apart and fell in several places. Another government expert, who spoke to Moscow FM radio station, said he believed it may have been a bolide, a type of fireball meteor that explodes in the earth’s atmosphere because of its composition or angle of entry and can be observed from the ground.

However, the governor of the Chelyabinsk region reported that a search team had found an impact crater on the outskirts of a city about 50 miles west of Chelyabinsk, which would indicate the meteor did not explode in the atmosphere. Several fragments were also reported to have struck around the city of Satka.

A small asteroid, known as 2012 DA14, is expected to pass close to earth later on Friday, NASA reported on its Web site. It was not clear whether the meteorite event in the Ural Mountains was in any way related.

Dozens of amateur videos of the event were broadcast on Friday morning. They showed bright objects streaking through a clear morning sky, leaving a thick trail of white vapor.

Dozens of amateur videos of the event were broadcast on Friday morning. They showed bright objects streaking through a clear morning sky, leaving a thick trail of white vapor.

Video clips from the city of Chelyabinsk showed an early morning sky illuminated by a brilliant flash, followed by the sound of breaking glass and multiple car alarms apparently triggered by the impact, which was powerful enough to shatter dishes and televisions inside people’s homes.

“I saw a flash in the window, turned toward it and saw a burning cloud, which was surrounded by smoke and was going downward – it reminded me of what you see after an explosion,” said Maria Polyakova, 25, head of reception at the Park-City Hotel in Chelyabinsk, which is 950 miles east of Moscow.

She said the explosion occurred shortly thereafter, shattering the thick glass doors on the hotel’s first floor. She said the hotel was evacuated, but that there was no panic. Emergency officials in Chelyabinsk reported that at least four people were injured by broken glass at a school, according to the Interfax news agency. Authorities said windows facing the point of impact broke throughout the city.

“Now we have many calls about trauma, cuts and bruises,” Igor Murog, a deputy governor of the Ural region, told Interfax.

A video made outside a building in Chelyabinsk captured a blast strong enough to break windows far from the point of impact and the astonished voices of witnesses who were uncertain what it was they had just seen.

“Maybe it was a rocket,” said one man, who rushed outside onto the street along with his co-workers when the object hit, far out of sight. A man named Artyom, who spoke to the Moscow FM radio station, said the explosion was enormous.

“I was sitting at work and the windows lit up and it was as if the whole city was illuminated, and I looked out and saw a huge streak in the sky and it was like that for two or three minutes and then I heard these noises, like claps,” he said. “And then all the dogs started barking.”

On impact, he said balconies shook and windows shattered. He said he did not believe it was a meteorite. “We are waiting for a second piece, that is what people are talking about now,” he said.

There were reports that falling objects were visible as far away as Yekaterinburg, 125 miles southeast of Chelyabinsk. A police official told Interfax that authorities had identified one meteorite’s point of impact, in a sparsely populated area around 50 miles outside the city of Satka.

Siberia stretches the length of Asia and there is a history of meteor and asteroid showers there. In 1908 a powerful explosion was reported near the Tunguska River in central Siberia, its impact so great that trees were flattened for 25 miles around. Generations of scientists have studied that event, analyzing particles that were driven into the earth’s surface as far away as the South Pole. A study published in the 1980s concluded the object weighed a million tons.

In the United States, NASA alluded to the Tunguska incident when it said that it was watching closely an asteroid 150 feet in diameter expected to whiz past earth on Friday at a distance of around 17,200 miles, the closest for many decades.

In a statement on its Web site, NASA said on Friday that there was no risk that the asteroid – known as 2012 DA14 – would collide with earth. But it would pass within “the belt of satellites in geostationary orbit, which is located 22,200 miles above earth’s surface.”

The asteroid is set to pass earth at around 2:25 p.m. E.S.T., NASA said. “At the time of closest approach, the asteroid will be over the eastern Indian Ocean, off Sumatra,” the agency said.

“Asteroid 2012 DA14 will not impact earth, but if another asteroid of a size similar to that of 2012 DA14 were to impact earth, it would release approximately 2.5 megatons of energy in the atmosphere and would be expected to cause regional devastation,” NASA said. The asteroid will not be visible to the naked eye, the agency added.

Referring to the “Tunguska Event,” NASA said the impact of an asteroid just smaller than 2012 DA14 “is believed to have flattened about 825 square miles of forest in and around the Podkamennaya Tunguska River in what is now Krasnoyarsk Krai, Russia.”

Viktor Klimenko contributed reporting from Moscow, and Alan Cowell from London.

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Pistorius in court in murder case

PRETORIA, South Africa (AP) — Paralympic superstar Oscar Pistorius openly wept as he appeared in court Friday, charged with the murder of his girlfriend as South Africans closely watched developments in a killing that has stunned the country.

Reeva Steenkamp, a model and budding reality TV show participant, was shot and killed at Pistorius' upmarket home in an eastern suburb of the South African capital in the predawn hours of Thursday, sending the country reeling.

Pistorius solemnly entered court in a gray suit and blue tie. He later broke down in tears.

Chief Magistrate Desmond Nasir was presiding over the hearing which likely will include Pistorius' request for bail. Police oppose the granting of bail.

Pistorius' father, Henke, was in the court as was his brother Carl, sister Aimee and other supporters of the 26-year-old double-amputee athlete.

Police said Friday an autopsy on the body of the victim was taking place. Lt. Col. Katlego Mogale said the results of the autopsy would not be published.

More than 100 people packed into Courtroom C at Pretoria Magistrate's Court, including dozens of photographers and videographers.

The Paralympian and Olympic athlete was earlier seen leaving a police station, his jacket completely covering his head as he got into a police vehicle.

He was holding what appeared to be a white handkerchief in one hand as he was led by officers to a police van outside the Boschkop Police Station in eastern Pretoria, where he had been questioned on Thursday and had spent the night in custody.

Police said the victim was shot four times at Pistorius' villa in a gated community. Officers found a 9 mm pistol inside the home and arrested Pistorius on a murder charge.

Pistorius made history at the London Olympics last year when he became the first double-amputee track athlete to compete at any games. He didn't win a medal but did make the semifinals of the 400 meters and the final of the 4X400 relay, propelling the world's best-known Paralympian to the level of an international track star.

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AP Sports Writer Imray reported from Johannesburg. Associated Press writer Michelle Faul contributed to this story.

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Well: Ask Well: Swimming to Ease Back Pain

Many people find that recreational swimming helps ease back pain, and there is research to back that up. But some strokes may be better than others.

An advantage to exercising in a pool is that the buoyancy of the water takes stress off the joints. At the same time, swimming and other aquatic exercises can strengthen back and core muscles.

That said, it does not mean that everyone with a case of back pain should jump in a pool, said Dr. Scott A. Rodeo, a team physician for U.S.A. Olympic Swimming at the last three Olympic Games. Back pain can have a number of potential causes, some that require more caution than others. So the first thing to do is to get a careful evaluation and diagnosis. A doctor might recommend working with a physical therapist and starting off with standing exercises in the pool that involve bands and balls to strengthen the core and lower back muscles.

If you are cleared to swim, and just starting for the first time, pay close attention to your technique. Work with a coach or trainer if necessary. It may also be a good idea to start with the breaststroke, because the butterfly and freestyle strokes involve more trunk rotation. The backstroke is another good option, said Dr. Rodeo, who is co-chief of the sports medicine and shoulder service at the Hospital for Special Surgery in New York.

“With all the other strokes, you have the potential for some spine hyperextension,” Dr. Rodeo said. “With the backstroke, being on your back, you don’t have as much hyperextension.”

Like any activity, begin gradually, swimming perhaps twice a week at first and then progressing slowly over four to six weeks, he said. In one study, Japanese researchers looked at 35 people with low back pain who were enrolled in an aquatic exercise program, which included swimming and walking in a pool. Almost all of the patients showed improvements after six months, but the researchers found that those who participated at least twice weekly showed more significant improvements than those who went only once a week. “The improvement in physical score was independent of the initial ability in swimming,” they wrote.

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DealBook: S.E.C. Is Said to Be Investigating Trading Before Heinz Deal

Regulators are scrutinizing unusual trading surrounding the planned $23 billion takeover of the food company H. J. Heinz, raising questions about potential illegal activity in one of the biggest deals in recent memory, a person briefed on the matter said.

The Securities and Exchange Commission opened an insider trading inquiry on Thursday as Berkshire Hathaway and the investment firm 3G Capital agreed to pay $72.50 a share for Heinz, this person said. Regulators first noticed a suspicious spike in trading on Wednesday.

If the S.E.C.’s preliminary inquiry turns into a broader investigation, it could cast a shadow over the deal. As part of the process, authorities would turn their focus toward the limited universe of insiders who could have tipped off traders about the deal.

The agency’s inquiry is expected to be centered on options trading in Heinz, activity that soared this week as news of the deal circulated Wall Street. In what is known as a call option, investors can place a bullish bet on a stock, without actually committing to buy the shares. Instead, investors have the opportunity to buy at a given price and future date.

As recently as Tuesday, there was scant activity in Heinz options. But by Wednesday, as the companies were putting the finishing touches on the deal, options trading jumped, data from Bloomberg shows.

The price of Heinz’s stock soared after the deal was announced. The stock finished up nearly 20 percent on Thursday to close at $72.50, matching the offer price.

The S.E.C. is focusing on the sudden leap in options trading Wednesday, building on a related case it filed last year that also involved 3G, a company with Brazilian roots. In September, the agency obtained an emergency court order to freeze the assets of a Brazilian man suspected of insider trading around 3G Capital’s takeover of Burger King. The trader, a Brazilian citizen who worked at Wells Fargo in Miami, reportedly received the tip from a 3G investor.

Neither the company nor any individual at 3G has been accused of any wrongdoing in that case or in the Heinz inquiry.

While the inquiry is in its early stages, the person briefed on the matter said that regulators could take relatively prompt action. If it is concerned that traders might move the money overseas, the S.E.C. could ask a federal court to freeze the traders’ assets.

The S.E.C. routinely opens inquiries into trading activity after major mergers are announced, but often does not bring charges. The agency, however, has renewed its focus on insider trading, mounting dozens of cases in recent years.

An S.E.C. spokesman declined to comment. Bloomberg News earlier reported that S.E.C. investigators were reviewing the surge in Heinz options trading.

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Woman Found Fatally Shot at Home of Pistorius

Emilio Morenatti/Associated Press

Oscar Pistorius, the South African Olympic and Paralympic track star, in September.

JOHANNESBURG — Paralympic champion Oscar Pistorius was taken into police custody early Thursday morning after he shot and killed a woman in his home in Pretoria, according to South African police officials.

Mr. Pistorius, 26, won two gold medals and a silver at last year’s Paralympic Games in London. He was the first double amputee to run in the Olympics and reached the 400-meter semi-final in 2012 in London. Known by the nickname Blade Runner, he races using carbon fiber prosthetic blades.

Early Thursday morning, the police responded to a report of gunshots in the upscale housing complex where Mr. Pistorius lives, said Col. Katlego Mogale, a police spokeswoman. When they arrived, they found paramedics treating a 30-year-old woman for gunshot wounds. The woman was pronounced dead and a 26-year-old man was taken into custody, Colonel Mogale said. She declined to identify the man as Mr. Pistorius, but another police official confirmed that it was the runner.

Colonel Mogale said that the case is being investigated as a murder and that the suspect is expected to appear in court later Thursday. She would not comment on a possible motive for the shooting.

“A case of murder has been opened,” Colonel Mogale said. “Currently the investigators and the forensic people are on the scene.”

Reports from local media said that Mr. Pistorius told the police that the shooting was an accident and that he had mistaken the woman, who was said to be his girlfriend, for an intruder.

South Africa has one of the world’s highest rates of violent crime, and break-ins by armed robbers are relatively common. Legal handgun ownership is also common, with some restrictions.

Adele Kirsten of Gun-Free SA, an anti-gun violence organization, said that whatever the motive, the shooting was an avoidable tragedy.

“The idea that you have a gun to protect your family against intruders, the data doesn’t bear that out,” Ms. Kirsten said. “What it tells us is that having a gun in your home puts you and your family at risk of being shot.”

In the Paralympics last September, Mr. Pistorius won individual gold, when he successfully defended his Paralympic 400 meter title. He had lost his 100- and 200-meter titles, but was part of the gold medal-winning 4x100 meter relay team. He same second in the 200 meter race.

After that contest, Mr. Pistorius damaged his reputation among his followers by criticizing the winner, Alan Oliveira of Brazil, raising questions about the length of the winner’s blades. Mr. Pistorius later apologized and praised the gold medalist in the 100 meter race, Jonnie Peacock of Britain.

Mr. Pistorius, who was born without fibulas, had both legs amputated below the knee before his first birthday and he battled for many years to compete against able-bodied athletes. In 2008, he qualified for the Beijing Games but was ruled ineligible by track’s world governing body because his blades were deemed to give him a competitive advantage.

South African journalists said Mr. Pistorius lived in an upscale, walled complex near the South Africa capital of Pretoria and that his girlfriend was a fashion model. A reporter outside the complex on Thursday said it was protected by high walls and razor wire.

Lydia Polgreen reported from Johannesburg, and Alan Cowell from Paris.

This article has been revised to reflect the following correction:

Correction: February 14, 2013

An earlier version of this article referred incorrectly in one reference to the sprinter at whose home a woman was fatally shot. He is Oscar Pistorius, not Pretorius.

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