COMMENT:A history of modern political extremists. The authors are careful to document, discuss and explain while avoiding criticism or pursuing their own agenda. The result is a good history, with commentary on the nature and mind set of the those who join extremist groups. Of greatest interest to skeptics in general (and not just those interested the political fringe) are the two chapters defining extremism. The authors define an extremist not for the views they hold, but for how the views are presented. They carefully separate the style of extremists from the validity of any beliefs they may hold.
