How did the second Red scare differ from the first?

The second Red Scare (late 1940s to the 1950s) differed from the first (1917-1920) in its intensity and the context surrounding it. The second Red Scare was fueled by the Cold War tensions between the United States and the Soviet Union, leading to widespread fear of communist infiltration in government and society. It featured prominent figures like Senator Joseph McCarthy, who aggressively pursued alleged communists, resulting in blacklisting and paranoia. In contrast, the first Red Scare was more focused on labor unrest and the fear of anarchist and Bolshevik influences following World War I.