Airmen participate in ATSO training

Airman 1st Class Michael Ionin, left, and Airman 1st Class Christopher Melo, both members of the 66th Security Forces Squadron, look over an unexploded ordnance field guide during a training exercise at Hanscom Air Force Base, Mass., Nov. 2. The training, known as the ability to survive and operate, or ATSO, prepares Airmen to operate successfully before and after a chemical attack. (U.S. Air Force photo by Mark Herlihy)

PHOTO BY: Mark Herlihy
VIRIN: 171102-F-JW594-069.JPG
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