Support WBURCabinet Picks Show A Shift In How U.S. Wages WarPlay04:16Download AudioAri ShapiroJanuary 31, 2013 SharePresident Obama shakes hands with his nominee to head the Defense Department, former Sen. Chuck Hagel, at the White House on Jan. 7. John Brennan, Obama's choice for director of the CIA, looks on. (Getty Images)