Cpl. Tyler Jones, a chemical, biological, radiological

Cpl. Tyler Jones, a chemical, biological, radiological and nuclear defense specialist with Combat Logistics Regiment 27, 2nd Marine Logistics Group, marks evidence found in a classroom during Exercise Joint Force Denial in Beaufort, N.C., July 18, 2012. During the training, Marines joined forces with the 42nd Civil Support Team, the Army’s equivalent to a CBRN section, to search and control a simulated contamination inside an abandoned grade school. (U.S. Marine Corps photo by Pfc. Franklin E. Mercado)