Andrew Mason, a co-founder of Groupon, has been ousted by the company's board, one day after a disappointing earnings report. Here, he's seen at a 2012 conference in Germany. Johannes Simon/Getty Images hide caption

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Republican New Jersey Gov. Chris Christie speaks with reporters in Trenton, N.J., this month. Christie was not invited to this year's CPAC conference. Mel Evans/AP hide caption

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A natural gas drilling rig just east of downtown Fort Worth, Texas. A new decade-long study finds the region's Barnett Shale formation has sufficient gas reserves to last another 25 years. David Kent/MCT/Landov/Fort Worth Star Telegram hide caption

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David Koch, executive vice president of Koch Industries, attends an event at The Economic Club of New York last year. Mark Lennihan/AP hide caption

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Iceland's government is drafting plans to ban pornography online and in print. Supporters say it's an attempt to shield children. Stoyan Nenov/Reuters /Landov hide caption

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House Minority Leader Nancy Pelosi discusses the Violence Against Women Act on Capitol Hill on Thursday. The House passed the measure, which could help curb violence on campus. Jacquelyn Martin/AP hide caption

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Supporters of the Violence Against Women Act rally in front of the U.S. Capitol last June. On Thursday, the House passed a reauthorization measure. Leadership Conference on Civil and Human Rights/Flickr hide caption

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Attorney General Eric Holder speaks before a meeting of the National Association of Attorneys General on Tuesday. Manuel Balce Ceneta/AP hide caption

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By taking antiretroviral drugs during pregnancy, this Tanzanian mother lowered the risk of passing HIV to her daughter. Siegfried Modola/AFP/Getty Images hide caption

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After decades living and working abroad, Saeed Malik (left) returned to his native Pakistan and wanted to do something to help rectify what he saw as a poor education system. He founded the Bright Star Mobile Library, which now serves about 2,500 children. Jackie Northam/NPR hide caption

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Pete Rose holds the record for all-time hits, but he was banned from baseball in 1989 for gambling on the game. Now, his records — but not his name — appear on Topps baseball cards. Otto Greule Jr/Getty Images hide caption

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Army Pfc. Bradley Manning (right) is escorted out of a courthouse in Fort Meade, Md., on June 25, 2012. His lawyer announced that Manning, who is accused of leaking classified information to WikiLeaks, had agreed to plead guilty to lesser charges. Patrick Semansky/AP hide caption

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