CHAIRMAN'S QUARTET The pop-vocal group 4Troops and Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, attend the Newman's Own Foundation "Tribute to Those Who Serve" reception at the Library of Congress in Washington, D.C., Dec. 1, 2010. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 543848-O-UUT47-366.jpg Photo Gallery