Eielson tests Airmen on ATSO
Airmen check M-8 paper for contamination during a training evaluation Oct. 23, 2009, Eielson Air Force Base, Alaska. The evaluation tests the ability of Airmen on how to survive and operate in a chemical, biological, radiological, nuclear and high yield explosive environment. The Airmen are assigned to the 354th Maintenance Squadron (U.S. Air Force photo/Staff Sgt. Christopher Boitz)