Adm. Mike Mullen responds to a reporter's question. Chairman of the Joint Chiefs of Staff Adm. Mike Mullen (right), U.S. Navy, responds to a reporter's question during his first joint media roundtable with Secretary of Defense Robert M. Gates in the Pentagon on Oct. 18, 2007. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 191525-U-TWR66-510.jpg Photo Gallery