Senior Airman Jeffrey Villa, 1st Operations Support Squadron air traffic control specialist, runs the training program for the Airmen still in training at Langley Air Force Base, Va., June 4. After graduation of technical school, air traffic control Airmen must still certify in the three areas of air traffic control, which are flight data, local controller and ground controller. (U.S. Air Force photo by Airman 1st Class Austin C. Harvill)