A joint team comprised of U.S. Airmen from the 20th Civil Engineer Squadron emergency management flight and the 20th Aerospace Medicine Squadron bioenvironmental engineering flight walk in a straight line while searching for simulated radiation for an exercise survey at Shaw Air Force Base, S.C., Aug. 29, 2018. The team paused every few steps to scan for various types of radiation and reported via radio any radiation found. (U.S. Air Force photo by Senior Airman Destinee Sweeney)