Question

During the years of McCarthyism in the '50s, many people felt Communism was a real threat to this country. What are two things that gave life to these fears?
1. It was believed the Federal government had been infiltrated by Communists.2. Many European and Asian countries had recently converted to Communism.3. Socialist organizations were gaining control of many American companies.4. The Soviet Union had recently begun building up a nuclear arsenal of its own.

Answer 1

I beilive it is 4- The soviet union had recently begun builiding up a nuclear arsenal of its own.