U.S. Air Force Senior Airman Paul Richter, search and extraction medic with the Chemical, Biological, Radiological, Nuclear Enhanced Response Force Package, Colorado National Guard, uses a petrogen oxy-gasoline cutting torch system to cut away the mangled metal of a man-made rubble pile in an attempt to extract a mock victim, during the exercise Vigilant Guard 2013 at the North Metro Fire Rescue District Training Center in Northglenn, Colo., July 24, 2013. Vigilant Guard is a series of federally funded disaster-response drills conducted by National Guard units working with federal, state and local emergency management agencies and first responders (U.S. Army National Guard photo by Spc. Zach Sheely/Released)