Members of the Colorado Chemical, Biological, Radiological, Nuclear Enhanced Response Force Package Search and Extraction Element put on protective masks in response to a simulated chemical exposure during Vigilant Guard training at a rubble pile in Magna, Utah on November 3, 2014. Unified Fire Authority assisted the Guardsmen in a simulated decontamination process. (Air National Guard photo by Staff Sgt. Annie Edwards/RELEASED)

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Photo credit: © PR images / Alamy / Afripics
License: Licensed
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