"CIA Director David Petraeus speaks to members of a Senate (Select) Intelligence hearing on ""World Wide Threats"" on Capitol Hill in Washington in this January 31, 2012 file photo. President Barack Obama on November 9, 2012 accepted the resignation of CIA Director David Petraeus, praised him as as one of the most outstanding generals of his generation and expressed confidence that the intelligence agency would continue to thrive. REUTERS/Kevin Lamarque/Files (UNITED STATES - Tags: POLITICS HEADSHOT)"