What did bystanders do in the 2nd red scare?

During the 2nd Red Scare, bystanders often became informants and reported suspected communists to authorities, contributing to the pervasive fear and paranoia of the era. Many people cooperated with McCarthyism, the anti-communist crusade led by Senator Joseph McCarthy, by providing information or testimonies that targeted individuals as "un-American" or communist sympathizers. Additionally, some bystanders remained silent out of fear of being accused themselves and added to the overall atmosphere of suspicion and distrust.