In an effort to reduce potential terrorist incidents, researchers from the National Consortium for the Study of Terrorism and Responses to Terrorism based at the University of Maryland mapped terrorist attacks in the United States between 1970 and 2008.
According to the report, more than than 2,600 attacks have taken place during that time period and nearly a third occurred in just five major cities.
The largest number of attacks took place in Manhattan, New York (343 attacks), followed by Los Angeles, Calif (156 attacks), Miami-Dade County, Fla. (103 attacks), San Francisco, Calif. (99 attacks), and Washington, D.C. (79 attacks).
A “hot spot” is defined as having more than six terrorist attacks (the national average) between 1970-2008.
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