Outgoing FBI director Robert Mueller speaks during an interview at FBI headquarters on Aug. 21, 2013, in Washington.
Outgoing FBI director Robert Mueller speaks during an interview at FBI headquarters on Aug. 21, 2013, in Washington. Evan Vucci Associated Press file
Outgoing FBI director Robert Mueller speaks during an interview at FBI headquarters on Aug. 21, 2013, in Washington. Evan Vucci Associated Press file