Airman Shane Swick, 28th Contracting Squadron contract administrator, compares the costs of replacement batteries for 28th Communications Squadron equipment at Ellsworth Air Force Base, S.D., Aug. 24, 2012. Airmen assigned to the 28th CONS process requests from squadrons around the base to secure mission essential resources in a cost efficient manner. (U.S. Air Force photo by Airman 1st Class Kate Thornton/Released)