Army Gen. David Petraeus, the top U.S. commander in Afghanistan and soon-to-be Director of CIA, conducts a question and answer session with the media, traveling with the new U.S. Defense Secretary, Saturday, July 9, 2011, at Camp Eggers in Kabul, Afghanistan. (AP Photo/Paul J. Richards, Pool)

Photo by: Paul J. Richards

Army Gen. David Petraeus, the top U.S. commander in Afghanistan and soon-to-be Director of CIA, conducts a question and answer session with the media, traveling with the new U.S. Defense Secretary, Saturday, July 9, 2011, at Camp Eggers in Kabul, Afghanistan. (AP Photo/Paul J. Richards, Pool)