"In twentieth century America, no threat loomed larger than the communist superpower of the Soviet Union. The Communist Party of the United States attempted to use deep economic and racial disparities in American culture to win over members and sympathizers. Marrin shows how the miscarriage of justice in the Scotsboro Boys case, the tragedy of the Rosenbergs, and the menace of the Joseph McCarthy and his war hearings lured many Americans to the ideals...