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

Profiles of Individual Radicalization in the United States (PIRUS)


Profiles of Individual Radicalization in the United States (PIRUS)

Abstract: 

Profiles of Individual Radicalization in the United States (PIRUS) is a database of 2,149 Islamist, far-left, far-right, and single-issue extremists who have radicalized to violent and non-violent extremism in the United States from 1948 through 2017. The database is freely available for download on START’s webpage at http://www.start.umd.edu/profiles-individual-radicalizationunited-states-pirus-keshif. The analysis for this research brief draws on the full dataset and illustrates the important differences that exist across ideological groups, as well as those which distinguish violent from non-violent extremists.

Publication Information

Full Citation: 

Jensen, Michael, Patrick James, Aaron Safer-Lichtenstein, Elizabeth Yates, and Gary LaFree. 2018. "Profiles of Individual Radicalization in the United States (PIRUS)." College Park, MD: START (October).  https://www.start.umd.edu/pubs/START_PIRUS_ResearchBrief_Oct2018.pdf

Publication URL: 
Visit Website