Terrorism -- Prevention 68 Islam 43 Religious aspects -- 43 Terrorism 38 Prevention. -- 29 Prevention -- 28 more ... Government policy -- 24 War on Terrorism, 2001-2009 24 Politics and government -- 20 National security -- 18 Terrorists -- 18 Foreign relations -- 17 Psychological aspects 16 September 11 Terrorist Attacks, 2001 14 History 13 Islam and politics -- 13 Islamic fundamentalism 12 History -- 11 Jihad 11 Government policy 10 Islamic fundamentalism -- 10 International cooperation 9 Security measures 9 Psychology 7 Social aspects 7 War -- 7 Weapons of mass destruction 7 Finance 6 Intelligence service -- 6 less ...