James Mason (neo-Nazi)

James Nolan Mason (born July 25, 1952) is an American neo-Nazi. Mason is the author of the newsletter and later the book, Siege, which has been influential on neo-Nazis. After growing disillusioned with the mass movement approach of neo-Nazi movements, he began advocating for a white supremacist revolution through terrorism. The newsletter Siege ran in the 1980s, with the book collecting it first published in 1992 by Michael J. Moynihan. After the publication of the book, Mason was convicted of assault and weapons charges, as well as charged with sexual exploitation and possession of pornographic images of a minor.

After the resulting prison sentence in the 1990s, Mason fell into obscurity and spent several years writing and self-publishing books. Siege was rediscovered by the neo-Nazi forum Iron March in 2015, which resulted in a surge in popularity of the book and a rise in the influence of Mason among neo-Nazis. Mason became an ideologue and influence on the neo-Nazi terrorist group Atomwaffen Division. In 2021, Mason was one of only two individuals sanctioned by the Canadian Government on its list of terror-related entities.