McGHEE TYSON AIR NATIONAL GUARD BASE, Tenn. - Senior Airman Kristopher L. Barrientes, right, receives the distinguished graduate award for Airman Leadership School Class 12-3 at The I.G. Brown Training and Education Center from retired Chief Master Sgt. "Doc" McCauslin, Air Force Sergeants Association, April 12, 2012. The distinguished graduate award is presented to students in the top ten percent of the class. It is based on objective and performance evaluations, demonstrated leadership, and performance as a team player. (Air National Guard photo by Master Sgt. Kurt Skoglund/Released)