Widespread domestic-terrorist attacks from radicals , like the 1920 Wall Street Bombing and the 1919 United States anarchist bombings created concern for most Americans , and sparked the first Red Scare . Although most Americans decried the attacks , many citizens in the labor and socialist movements were growing frustrated with the growing level of income inequality during that time . There was a huge economic spur
1919 United States anarchist bombings
1919 United States anarchist bombings
History of the United States (1918–1945)