Profiles of Individual Radicalization in the United States: An Empirical Assessment of Domestic Radicalization

The Profiles of Individual Radicalization in the United States (PIRUS) project is a database of Islamist, Far Left and Far Right individuals who have radicalized to violent and non-violent extremism in the United States. Wave 1 of the project was completed in August 2013, with more than 600 individuals included in the dataset and 10 in-depth case studies. The analysis for this research brief draws on the Wave 1 dataset observations; it uses indexes measuring various risk factors for radicalization (see "Method" section for more information), as well as individual variables measuring specific conditions or events of interest to those studying radicalization.