In this file image taken from video obtained from Voice Of Jihad Website, which has been authenticated based on its contents and other AP reporting, Sgt. Bowe Bergdahl (right) stands with a Taliban fighter in eastern Afghanistan. AP hide caption

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Sen. Scott Brown, R-Mass., attends the Republican National Convention in Tampa, Fla., on Aug. 30. Scott lost his re-election bid, but could be running for office again in a matter of weeks. Chip Somodevilla/Getty Images hide caption

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President Obama and Sen. John Kerry, D-Mass., at the White House this afternoon. Mandel Ngan /AFP/Getty Images hide caption

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Sen. John Kerry, D-Mass., U.N. Ambassador Susan Rice, and Secretary of State Hillary Clinton listen to President Obama speak at the State Department in May 2011. With Rice withdrawing her name from consideration to succeed Clinton, speculation has turned to Kerry. Chip Somodevilla/Getty Images hide caption

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Among the evidence seized at bin Laden's compound were videos — including one showing the al-Qaida leader watching TV. The Pentagon released this image from one of the videos on May 7, 2011. AFP/Getty Images hide caption

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