In a photo taken in Aug. 2013, Russian President Vladimir Putin, left, is shown with businessman and billionaire Arkady Rotenberg, right, mourn during a farewell ceremony for Putin's first judo coach, Anatoly Rakhlin in St. Petersburg, Russia. Mikhail Klimentyev/AP hide caption

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The founder and chairman of Shake Shack, Danny Meyer, visits the floor of the New York Stock Exchange. Spencer Platt/Getty Images hide caption

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Harvard University student Elana Simon introduces President Obama before he spoke at the White House Friday about an initiative to encourage research into more precise medicine. Mandel Ngan/AFP/Getty Images hide caption

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The defending champion and favorite remains the chicken wing. But underdog snacks like the carrot are trying to elbow their way into the competition. Leif Parsons for NPR; Source: whologwhy/Flickr hide caption

itoggle caption Leif Parsons for NPR; Source: whologwhy/Flickr

Russian tourists typically flock to the luxury ski resort of Megeve in the French Alps, but the weak ruble has kept them away this year. Jean-Pierre Clatot/AFP/Getty Images hide caption

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President Obama has said he will veto the Keystone XL pipeline project, which passed in the Senate on Wednesday. Historically, political scientists say, 90 percent of veto threats are issued behind the scenes, but Obama has issued nine veto threats so far — in public. Mandel Ngan/AFP/Getty Images hide caption

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Eugene De Kock a former Vlakplaas commander speaks to the judge at a Truth and Reconciliation Commission in 1999. De Kock, the apartheid regime's top assassin, asked the commission for amnesty for over 100 incidents of torture, murder and fraud. Yoav Lemmer /AFP/Getty Images hide caption

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Senate Majority Leader Mitch McConnell, R-Ky., prepares to speak to the media Thursday before the Senate voted to approve the Keystone XL pipeline. Jim Lo Scalzo /EPA /Landov hide caption

itoggle caption Jim Lo Scalzo /EPA /Landov