ELLSWORTH AIR FORCE BASE, S.D. -- (Left to right) Bill Beck, Senior Airman O'Brian Thomas and Scott Van Drew, 28th Civil Engineer Squadron firefighters, check a simulated "victim" for injuries during an Emergency Medical Technician training session, Jan. 19. Firefighters must validate their EMT skills every two years as part of a requirement set by the National Registry of Emergency Medical Technicians. (U.S. Air Force photo/Airman 1st Class Joshua J. Seybert)