A Department of Homeland Security Center of Excellence led by the University of Maryland

A consortium of researchers dedicated to improving the understanding of the human causes and consequences of terrorism

Homegrown Terrorism in the United States


Homegrown Terrorism in the United States

Abstract: 

This entry focuses on homegrown terrorism in the United States. There are many terrorism definitions. Indeed, Schmid and Jongman (1988) identified over 100 definitions that differed over whether they included 1 of 22 elements. Nonetheless, Freilich et al. (2009a, b) demonstrate that almost all definitions require a violent, ideologically motivated illegal act committed by a political extremist, and this definition is used here. The Congressional Research Service (Bjelopera and Randol 2010, p. 1) defines homegrown terrorism as a “terrorist activity or plots perpetuated within the United States or abroad by American citizens, permanent legal residents, or visitors radicalized largely within the United States.”

Publication Information

Full Citation: 

Freilich, Joshua D., Steven M. Chermak, and Roberta Belli. 2014. "Homegrown Terrorism in the United States." In Encyclopedia of Criminology and Criminal Justice, eds. Gerben Bruinsma and David Weisburd. New York: Springer, 2336-2345. http://link.springer.com/referenceworkentry/10.1007%2F978-1-4614-5690-2_93

Publication URL: 
Visit Website

Additional Info

Research Area: 
Regions: