Terrorism -- Prevention 108 Terrorism 83 Religious aspects -- 71 Islam 70 Prevention -- 68 Government policy -- 52 more ... Foreign relations -- 37 Terrorists -- 35 National security -- 34 Prevention. -- 32 History -- 31 Politics and government -- 30 Psychological aspects 26 War on Terrorism, 2001-2009 23 Jihad 21 September 11 Terrorist Attacks, 2001 21 History 20 Islam and politics -- 20 War on terrorism, 2001- 18 Government policy 16 International cooperation 16 Islamic fundamentalism 15 Islamic fundamentalism -- 15 Psychology 14 Foreign relations 13 Political aspects 13 Politics and government 13 War -- 11 Political aspects -- 10 less ...