“How to Spot a Communist” is a pamphlet prepared by the US First Army Headquarters in 1955 and reprinted in popular magazines in the 1950s. Here is an excerpt from this interesting document of the Cold War era that is available here:
In addition to these very general principles common to Communist tactics, a number of specific issues have been part of the Communist arsenal for a long period of time. These issues are raised not only by Communist appeals to the public, but also by the individual Party member or sympathizer who is a product of his Communist environment. They include: “McCarthyism,” violation of civil rights, racial or religious discrimination, immigration laws, anti-subversive legislation, any legislation concerning labor unions, the military budget, “peace.”