Why did Palmer arrest thousands of people and deport hundreds?

Palmer arrested thousands of people during the Red Scare of the 1920s, primarily targeting those suspected of radical political beliefs, particularly anarchists and communists. This crackdown was fueled by fears of a communist uprising following the Russian Revolution and a series of bombings in the United States. His actions, part of the Palmer Raids, aimed to suppress dissent and maintain social order, but they also raised significant concerns about civil liberties and the protection of individual rights. Ultimately, the raids were criticized for their overreach and the violation of due process.