AIRMAN'S GREETING Deputy Defense Secretary Ashton B. Carter, left foreground, shakes hands with multinational F-16 Fighting Falcon aircraft training students while visiting the Air Force's 162nd Fighter Wing at the Air National Guard Base on Tucson International Airport, Tucson, Ariz., Sept. 26, 2012. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 846303-B-WEL96-874.jpg Photo Gallery