Gen. George W. Casey Jr. testifies on Capitol Hill before the Senate Armed Services Committee. Army Chief of Staff Gen. George W. Casey Jr. testifies on Capitol Hill before the Senate Armed Services Committee's hearing on the military's "don't ask, don't tell" policy on Dec. 3, 2010. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 726748-D-PMT09-797.jpg Photo Gallery