Terrorism Terrorism -- 70 Prevention 28 World politics -- 16 Prevention -- 13 Security, International 11 Terrorists 10 more ... Foreign relations -- 9 Political violence 9 War on terrorism, 2001- 7 Weapons of mass destruction 7 Forecasting 6 History 6 International relations 6 War on Terrorism, 2001-2009 6 International cooperation 5 Radicalism 5 September 11 Terrorist Attacks, 2001 5 Terrorists -- 5 Foreign relations 4 Globalization 4 Government policy -- 4 History -- 4 Violence 4 Conflict management 3 Fanaticism 3 Government policy 3 Hijacking of aircraft 3 Islam 3 Moral and ethical aspects 3 less ...