Lee Lavender, an employee of the Guardian Centers of Georgia, demonstrates how to identify radioactive contaminants in a full-scale passenger train during a Global Dragon training event on March 18, 2015. Held in Perry, Ga., Global Dragon Deployment For Training provides a refresher course for Airmen, allowing them to put their skills to use to identify live chemical, biological, radiological and nuclear agents and materials. Air National Guard emergency management technicians from more than 20 individual units participated in Global Dragon. (New York Air National Guard / Staff Sgt. Christopher S. Muncy / released)