Sept. 11 looms large as the defining example of a terrorist attack on the United States, but it was one of more than 1,000 in recent years and a very atypical example.
START Director Gary LaFree cites data from START's Global Terrorism Database (GTD) and explains how Sept. 11 has fundamentally altered our perceptions of terrorism. See 9/11 'Misleads' Americans' View of Terrorism