File photographs of John Brennan and Chuck Hagel

 
File photographs of John Brennan and Chuck Hagel
A combination photograph shows Assistant to the President for Counterterrorism and Homeland Security John Brennan (L) and former U.S. Senator Chuck Hagel (R-NE) in Washington in January 7, 2010 and in Omaha, Nebraska in March 12, 2007 respectively. REUTERS/Files