Final answer:
The fear of communism in the United States became worse during the Second Red Scare in the early 1950s due to various factors such as the victory of Communist forces in China, the outbreak of the Korean War, and espionage incidents. Propaganda also played a role in intensifying the fear.
Step-by-step explanation:
The fear of communism in the United States became worse during the Second Red Scare in the early 1950s. This was marked by the victory of Communist forces in China, the outbreak of the Korean War, and the political climate that emerged in the United States. The fear intensified as there were concerns about spies, such as the discovery of State Department workers passing classified information to Communist supporters and the revelation of espionage within the Manhattan Project. The fear of communism was also fueled by propaganda, like the comic book 'Is This Tomorrow?' that depicted the potential horrors of living under a Communist dictatorship.