TOP GRADUATE Air Force Secretary Michael B. Donley congratulates Cadet Zebulon Hanley as the top graduate of the U.S. Air Force Academy's Class of 2013 during the commencement ceremony at Falcon Stadium in Colorado Springs, Colo., May 29, 2013. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 109094-A-ADM73-414.jpg Photo Gallery