dirty bombs

Seen At 11: NYC's Ring Of Protection -- Tools In The Fight Against Dirty BombsWalk around the city, or drive around the suburbs, and there’s a good chance that a dirty bomb detector will check you out.
NYC Awarded $18.5M Homeland Security GrantNew York City is receiving a multimillion dollar Homeland Security grant to protect the metropolitan area from “dirty bombs” – crudely constructed nuclear explosive devices.