NEW BOSTON AIR FORCE STATION, N.H. -- A firefighter from nearby Amherst starts decontaminating a fellow firefighter exposed to a "chemical agent" here during an exercise here May 15. The exercise, called Granite Thunder 2004, encompassed more than 20 local, state and federal agencies to respond to a simulated terrorist attack that combined explosives with chemical agents. (U.S. Air Force photo by Mark Wyatt)