Washington- U.S. To Stage Largest-Ever Terror Exercise.

Washington – The nation is preparing for its biggest terrorism exercise ever next week when three fictional “dirty bombs” go off and cripple transportation arteries in two major U.S. cities and Guam.

Next week will be the fourth Top Officials exercise – dubbed TOPOFF. The program costs about $25 million a year and involves the federal government’s highest officials, such as top people from the Defense and Homeland Security departments.[ap]