President Obama (center) announces in the East Room of the White House in Washington on Monday, Jan. 7, 2013, that he is nominating John Brennan (right), his deputy national security adviser for homeland security and counterterrorism, as the new director of the CIA, and former Nebraska Sen. Chuck Hagel (left) as the new defense secretary. (AP Photo/Charles Dharapak)

Photo by: Charles Dharapak

President Obama (center) announces in the East Room of the White House in Washington on Monday, Jan. 7, 2013, that he is nominating John Brennan (right), his deputy national security adviser for homeland security and counterterrorism, as the new director of the CIA, and former Nebraska Sen. Chuck Hagel (left) as the new defense secretary. (AP Photo/Charles Dharapak)