Original sentence: In the late 1940s the United States, as the Cold War escalated between the United States and the Soviet Union and China, the nation went through a period of intense anti-Communist tensions and suspicion.The issue was heightened after the war with the discovery of Soviet spies in government positions (most notably Alger Hiss)
Edited sentence: In the late 1940s the United States, as the Cold War escalated between the United States and the Soviet Union and China, the nation went through a period of intense anti-Communist soul-searching.The issue was heightened after the war with the discovery of Soviet spies in high government positions (most notably Alger Hiss), the expulsion of Communist leaders from American labor unions, and the Truman Adminsitration's purge of thousands of suspects