02 Apr

File:U.S. Air Force Tech. Sgt. William J. Catton, an instructor with the 189th Civil Engineer Squadron, demonstrates the proper technique for sampling unknown chemical warfare agents or toxic agents to Tech. Sgt 070912-F-WA217-022.jpg

U.S. Air Force Tech. Sgt. William J. Catton, an instructor with the 189th Civil Engineer Squadron, demonstrates the proper technique for sampling unknown chemical warfare agents or toxic agents to Tech. Sgt 070912-F-WA217-022.jpg

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