Editor’s note: We’ve partnered with the National Consortium for the Study of Terrorism and Responses to Terrorism (START) to publish a series of infographics based on data from their Global Terrorism Database and related START projects. Each week we’ll release a new set of graphics that depict trends in global terrorism activity. Sign up for the War on the Rocks newsletter to … Continue reading What Does Four Decades of Terrorism in the U.S. Look Like?