Terrorism Terrorism -- 19 Prevention 6 Security, International 5 World politics -- 5 War on terrorism, 2001- 4 Foreign relations -- 3 more ... International relations 3 Prevention -- 3 Al Qaeda 2 Forecasting 2 Foreign relations 2 Globalization 2 Guerrilla warfare 2 History -- 2 Insurgency 2 Political violence 2 Social conflict 2 Terrorists 2 Weapons of mass destruction 2 Anti-Americanism 1 Arms control 1 Child terrorists 1 Cold War 1 Communism -- 1 Counterinsurgency 1 Economic aspects 1 Economic conditions 1 Espionage,American -- 1 Fanaticism 1 less ...