U.S. Airmen, assigned to the 169th Operations Support Squadron Aircrew Flight Equipment shop, set up and operate a decontamination line during a yearly Task Qualification Training, Ability to Survive and Operate exercise at McEntire Joint National Guard Base, South Carolina Air National Guard, March 8, 2019. An ATSO exercise familiarizes Airmen to perform their duties in potential chemical environments. (U.S. Air National Guard video by Master Sgt. Caycee Watson) More