A new study estimates that a terrorist attack involving the detonation of a dirty bomb in downtown Los Angeles would cost the area $16 billion, mostly in lost revenue. By contrast, the immediate cost of such an attack, loosely defined as the cost necessary to deal with the injured and restore the area to a pre-attack condition along with revenue lost due to temporary businesses closings, is estimated at a little over $1 billion. The rest of the cost would result from the psychological impact of the attack on potential shoppers, diners and employees.
The point of the study was not to generate anxiety, according to researcher William Burns of Design Research, who co-authored the study along with researchers from the University of Oregon, the USC Annenberg School for Communication and Journalism, Brown University, Monash University and ABS Consulting. Rather, the investigators hoped to increase awareness of the potential impact on the public of terrorism and to highlight the importance of establishing effective risk communication as an important part of both disaster preparedness and response.
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