The case of Sacco and Vanzetti was similar to that of the individuals arrested during the Palmer Raids of 1919-1920 in that both involved

Both Sacco and Vanzetti and many people arrested in the Palmer Raids were associated with radical political movements. Sacco and Vanzetti were anarchists, while the raids targeted suspected radicals, including anarchists and communists. The shared feature was radicalism, not espionage, religious freedom, or murder.

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