The National Consortium for the Study of Terrorism and Responses to Terrorism (START) Global Terrorism Database – part of a joint government-university program on terrorism -  is hosted at the University of Maryland.

START is the most comprehensive open source terrorism database, which can be viewed by journalists and civilians lacking national security clearance.

A quick review of charts from the START database show that terrorism has increased in the last 9 years since the U.S. started its “war on terror”.