"In the post 9-11 world, terrorism has been primarily associated with the external threat from radical Islamic extremists. Prior to September 11, 2001 the single most destructive weapon of mass destruction in the United States was the Ryder truck bomb built by Timothy McVeigh and Terry Nichols. Both McVeigh and Nichols harbored extreme right-wing anti-government beliefs they felt justified the bombing. A high level of anti-American government sentiment was a common element shared by McVeigh, Nichols, and the al Qaeda terrorists on the 9-11 aircraft. This article asks if the threat of violence by right-wing extremists, including their possible deployment of weapons of mass destruction, has been neutralized. Information to better understand the level of threat posed by right-wing groups includes the need to understand their ideology and history, along with a review of past and present individuals who influenced the growth and development of the radical right, including the following groups: Christian Identity; militias; Sovereign Citizens, Freemen, and Common Law Courts; Ku Klux Klan; neo-Nazis; and Skinheads."
Homeland Security Affairs Journal: http://www.hsaj.org/
Homeland Security Affairs (July 2006), v.2 no.2, article 3