GALLAGHER, W.V. - Petty Officer 2nd Class Eric Schenk, a Marine Science Technician at the Gulf Strike Team based out of Mobile, Ala., and Petty Officer 3rd Class Jeff Nagel, a marine science technician at the Atlantic Strike Team based out of Fort Dix, N.J., conduct a chemical sweep of a train car during a drill at the Center for National Response Memorial Tunnel in Gallagher, Thursday, Apr. 5, 2012. U.S. Coast Guard photo by Chief Petty Officer Paul Roszkowski.
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