History 21 Influence Politics and government Political culture 8 Police 5 Political purges 5 Social control 5 more ... State-sponsored terrorism 5 Public opinion 4 Social conditions 4 Communism 3 Ideology 3 Political persecution 3 Popular culture 3 Propaganda, Soviet 3 Socialism 3 College students 2 Death and burial 2 Foreign relations 2 Heads of state 2 Higher education and state 2 Internal security 2 Political activity 2 Political and social views 2 Political messianism 2 Political prisoners 2 Political psychology 2 Power (Social sciences) 2 Relations with Jews 2 Social change 2 less ...