DHS Adds Chlorine Bombs To Preparedness Need

The Homeland Security Department is warning U.S. chemical plants and bomb squads to guard against a new form of terrorism: chlorine truck bombs. At least five chlorine truck bombs have exploded in Iraq in recent months, killing scores of people and injuring many more after they breathed the toxic fumes. A chlorine truck blast April 6 in Ramadi killed 27 people and injured dozens more. "This is now being used as a tactic against us in another part of the world," says Robert Stephan, Homeland Security's infrastructure protection chief. "We've got to be prepared for it."