Anti-communism has long been a potent force in American politics, capable of gripping both government and popular attention. Nowhere is this more evident that the two great 'red scares' of 1919-20 and 1946-54; the latter generally - if somewhat inaccurately - termed McCarthyism. The interlude between these two major scares has tended to garner less attention, but as this volume makes clear, the lingering effects of 1919-20 and the gathering storm-clouds of 'McCarthyism' were clearly visible throughout the 20s and 30s, even if in a more low-key way. Indeed, the period between the two great red...