Adm. Michael Mullen testifies before the Senate Appropriations Committee. Chairman of the Joint Chiefs of Staff Adm. Michael Mullen testifies before the Senate Appropriations Committee with Secretary of Defense Robert M. Gates and Pentagon Comptroller Robert Hale in Washington, D.C., on June 16, 2010. SHARE IMAGE: Download Image: Full Size (0.04 MB) Photo By: VIRIN: 168903-Q-CGW18-459.jpg Photo Gallery