Boston police with a pile of "subversive" literature, confiscated during the post-WWI Red Scare in November of 1919. [Getty]

For more on the "First Red Scare" in America and how it shaped the post-WWII Red Scare, check out Red Scare: FBI and the Origins of Anticommunism in the United States, 1919-1943 by Regin Schmidt at your local library.

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