Deputy Secretary Carter delivers his remarks at the Air Force Association Air & Space Conference Deputy Secretary of Defense Ashton B. Carter delivers his remarks at the Air Force Association Air & Space Conference at the Gaylord National Resort & Convention Center at National Harbor, Md., on Sept. 19, 2012. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 701045-I-WST95-811.jpg Photo Gallery