Final answer:
A. Mitchell Palmer was the Attorney General behind the controversial Palmer Raids targeting suspected radicals post-World War I.
Explanation:
A. Mitchell Palmer served as the Attorney General of the United States during the post-World War I era and was known for his involvement in the Palmer Raids, which targeted suspected radicals, anarchists, and communists. Palmer's actions, though controversial, were driven by a fear of radical ideologies spreading in the country, leading to widespread arrests and deportations without proper legal procedures.
Learn more about A. Mitchell Palmer and the Palmer Raids here:
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