Domestic Extremism Lexicon
26 March 2009

Prepared by the Strategic Analysis Group and the Extremism and Radicalization Branch, Homeland Environment Threat Analysis Division.

Homeland Security Reference Aids—prepared by the DHS/Office of Intelligence and Analysis (I&A)—provide baseline information on a variety of homeland security issues. This product is one in a series of reference aids designed to provide operational and intelligence advice and assistance to other elements of DHS, as well as state, local, and regional fusions centers. DHS/I&A intends this background information to assist federal, state, local, and tribal homeland security and law enforcement officials in conducting analytic activities. This product provides definitions for key terms and phrases that often appear in DHS analysis that addresses the nature and scope of the threat that domestic, non-Islamic extremism poses to the United States. Definitions were derived from a variety of open source materials and unclassified information, then further developed during facilitated workshops with DHS intelligence analysts knowledgeable about domestic, non-Islamic extremism in the United States.