The story, often an unpleasant and violent one, of the American reaction to antiwar individuals and groups--anarchists, I.W.W.s, Socialists, conscientious objectors--in 1917-1918. The book treats the subject primarily as a chapter in the history of human intolerance and bigotry, an approach which does not do full justice to the issue of loyalty and dissent under conditions of twentieth-century war.