Adm. Mike Mullen speaks with members of the Pentagon press corps. Chairman of the Joint Chiefs of Staff Adm. Mike Mullen, U.S. Navy, speaks with members of the Pentagon press corps during a press briefing with Secretary of Defense Robert M. Gates in the Pentagon on Sept. 3, 2009. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 251471-M-AZM03-375.jpg Photo Gallery