Adm. Mike Mullen testifies at a hearing of the House Armed Services Committee. Chairman of the Joint Chiefs of Staff Adm. Mike Mullen testifies at a hearing of the House Armed Services Committee on operations in Libya in the Rayburn House Office Building in Washington, D.C., on March 31, 2011. SHARE IMAGE: Download Image: Full Size (0.05 MB) Photo By: VIRIN: 208860-C-TSQ57-006.jpg Photo Gallery