A member of the New York National Guard's 24th Weapons of Mass Destruction Civil Support Team (CST) checks for the presence of contaminants during a drill at the Suffolk County Water Authority's New Highway Pump Station on Monday, October 27, 2014. National Guard CSTs are trained to identify the presence of chemical, biological, or radiological agents and provide that information to local authorities. The exercise tested response protocols to intruder events and to identify and correct any existing weaknesses in station security.(U.S. Air National Guard by Senior Airman Christopher S Muncy / released)