Lance Cpl. Weston B. Paulson, a chemical, biological, radiological and nuclear defense specialist with CBRN Platoon, 4th Marine Logistics Group, Marine Forces Reserve, searches for the presence of hazardous materials while serving as part of a reconnaissance team during a hazardous material technician training event at Pilottown, La., July 29, 2016. During the training scenario, the Marines responded with the United States Coast Guard to a simulated chemical lab in an abandoned hotel used to produce a dangerous mustard agent. (U.S. Marine Corps photo by Sgt. Ian Leones/ Released)