U.S. Defense Secretary Chuck Hagel takes his seat to testify about the Bergdahl prisoner exchange, at a House Armed Services Committee hearing on Capitol Hill in Washington June 11, 2014. A closed-door congressional hearing on the release of U.S. Army Sergeant Bowe Bergdahl failed to calm Republican anger on Tuesday over the administration's secretive deal to trade five Taliban leaders held at Guantanamo for the U.S. prisoner of war. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS MILITARY)