The red scare of the 1920s was fueled by the fear that another world war might begin. communist ideas might spread in the united states. italian immigrants might start illegal businesses. workers’ strikes might take a violent turn.

The Red Scare was fueled by fears that communist ideas might spread in the United States.

After the Bolshevik revolution, the fear of immigrants from communist countries spreading communist ideology grew. The fear of Soviet spies also contributed to this factor. 

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