Politics and government -- 3 History -- 2 Attitudes -- 1 Biography -- 1 Communism -- 1 Communism and science -- 1 Foreign public opinion, American 1 more ... Foreign relations -- 1 Heads of state -- 1 Intellectuals -- 1 Korean War, 1950-1953 1 Nuclear weapons -- 1 Progressivism (United States politics) 1 Public opinion -- 1 Radicals -- 1 Radioactive waste sites -- 1 Relations -- 1 Science and state -- 1 less ...