NEW : Petraeus is sworn in as CIA director . He succeeds Leon Panetta , who is now the deputy secretary of defense . Petraeus was the top U.S. commander in Iraq and Afghanistan . Obama cited Edwards ' experience with the CIA on his efforts in the election .
NEW : Petraeus is sworn in as CIA director . Petraeus succeeds Leon Panetta , who is now the U.S. secretary of defense . Petraeus was the top U.S. commander in Iraq and Afghanistan . Obama cited Petraeus ' work with the CIA on counterinsurgency efforts in the field .