Prevention -- Terrorism -- 10 Government policy -- 5 National security -- 3 Foreign relations -- 2 History -- 2 Politics and government -- 2 more ... Case studies 1 Civil rights -- 1 Economic sanctions, American 1 Emergency communication system -- 1 Emergency management -- 1 History. -- 1 Intelligence officers -- 1 Internal security -- 1 International cooperation 1 Islam 1 Islamic fundamentalism 1 Islamic fundamentalism -- 1 Law and legislation -- 1 Politics and government 1 Prevention 1 Prevention. -- 1 Relations 1 Religious aspects -- 1 Terrorism 1 Undercover operations -- 1 War on Terrorism, 2001-2009 1 Weapons of mass destruction 1 World politics -- 1 less ...