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The Profiles of Individual Radicalization in the United States (PIRUS) dataset contains deidentified individual-level information on the backgrounds, attributes, and radicalization processes of nearly 1,500 violent and non-violent extremists who adhere to far-right, far-left, Islamist, or single-issue ideologies in the United States covering 1948-2013. Coded using entirely public sources of information, the PIRUS dataset is among the first efforts to understand domestic radicalization from an empirical and scientifically rigorous perspective. Users can now explore the rich PIRUS data using the Keshif data visualization tool, a user-friendly platform that allows for intuitive and insightful analysis of the data in real-time.

Intelligence Analyst Paige Schilling sits down with Patrick James, project manager for PIRUS, to discuss PIRUS’s purpose and goals, trends, future research, and intentions to continue data to the present day.