History of America

I learned about a communist hunt that the government of America constructed. After WWⅡ, from 1945 to 1954, it was the cold war era in the U. S and the Soviet Union. Though the government of America push forward the capitalism, there are people who objected the capitalism. Then, the government constructed a communist hunt. Many producers of movie and students of University who talked about the communism were killed or arrested. I thought the government is cruel. What is freedom and liberty that they display.