Gen. George W. Casey Jr. talks with a soldier while medical staff stand by. U.S. Army Chief of Staff Gen. George W. Casey Jr. talks with a soldier while medical staff stand by at Brooks Army Medical Center at Fort Sam Houston, Texas, on Jan. 21, 2011. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 216166-B-NWM68-377.jpg Photo Gallery