Secretary Gates and Adm. Mike Mullen address the media. Secretary of Defense Robert M. Gates and Chairman of the Joint Chiefs of Staff Adm. Mike Mullen, U.S. Navy, address the media during a press briefing in the Pentagon on Sept. 23, 2010. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 119968-L-WXV02-611.jpg Photo Gallery