http://www.tkb.org/NCTC/Home.jsp
"The National Counterterrorism Center (NCTC) is the primary center for US government analysis of terrorism. NCTC is making its database of terrorists incidents available via the MIPT Terrorism Knowledge Base to improve information sharing and to further understanding of terrorism. Offering multiple options to analyze NCTC’s Worldwide Incidents Tracking System dataset, the new NCTC portal allows users to create custom color charts or to plot terrorist incidents in relation to dozens of geographic, political, and infrastructural characteristics. "
