“If i wanted to explain certain things, but i felt that if they knew about my background, they would no longer allow me to be a child.”
Between 1946 and 1954, the House Committee of Un-American Activities and Senator Joseph McCarthy attracted public attention by investigating 1. allegations of communist influences in government. HUAC, as the committee was called, investigate claims of communist ties not only in the government, but in other industries as well such as the filmmaking industry in Hollywood.
I'm not positive but I think it was because of nuclear power where each country kept on acquiring more nuclear powers. Each country was trying to out power the other and this caused tensions to be higher since there was a risk of war.