U.S. Army Pfc. Demetrius Roberson, a preventive medicine medic with Company C, 426th Brigade Support Battalion, 1st Brigade Combat Team, 101st Airborne Division, adds CN-1 to a small beaker of water to test for cyanide in the sample Dec. 17 here. (U.S. Army photo by Sgt. Jon Heinrich, Task Force 1-101 PAO)
Sgt. Jon Heinrich
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