Nuclear hazard
Nuclear, biological, and chemical (NBC) hazards are becoming a growing concern.
Dirty bombs
One possible terrorist scenario involves a "dirty bomb" in which a terrorist uses nuclear materials together with a conventional explosive to disperse the nuclear hazard.
Mitigation of nuclear hazards
Nuclear spills, or suspected exposures, are dealt with by decontaminating exposed or potentially exposed persons.
When the spill is severe, mass decontamination may be required.