Airman 1st Class Rodreakius Edwards, 28th Operations Support Squadron air traffic control technician, teaches Airmen about visual flight rules during a training session at Ellsworth Air Force Base, S.D., April 19, 2012. The 28th OSS Radar Approach Control section controls the airspace for Ellsworth, Rapid City Regional Airport, and aircraft operating around Minot AFB, N.D. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)