Practice makes perfect
U.S. Air Force Airman Michelle Thornton, 4th Medical Operations Squadron aerospace medicine technician, pulls a boot off Staff Sgt. William Spears, 4th Aerospace Medicine Squadron aerospace medicine technician, during an ability to survive and operate exercise on Seymour Johnson Air Force Base, N.C., Sept. 26, 2012. More than 1,000 Airmen refreshed their knowledge on ATSO operations during the exercise. (U.S. Air Force photo/Airman 1st Class John Nieves Camacho/Released)