Secretary Gates observes flight operations aboard the aircraft carrier USS Abraham Lincoln (CVN 72). Secretary of Defense Robert M. Gates (2nd from left) observes flight operations aboard the aircraft carrier USS Abraham Lincoln (CVN 72) underway in the Arabian Sea on Dec. 6, 2010. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 633073-U-TQX05-793.jpg Photo Gallery