Adm. Mike Mullen responds to a reporter's question during a press conference. Chairman of the Joint Chiefs of Staff Adm. Mike Mullen responds to a reporter's question during a press conference with Secretary of Defense Robert M. Gates in the Pentagon on March 1, 2011. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 755591-Y-IQG30-588.jpg Photo Gallery