Terrorism Prevention 136 History 67 Government policy 66 Religious aspects 59 Islam 54 War on Terrorism, 2001-2009 46 more ... Terrorists 40 International relations 38 September 11 Terrorist Attacks, 2001 36 Foreign relations 28 Politics and government 27 Jihad 22 National security 22 Islamic fundamentalism 19 Psychology 17 Political aspects 16 Psychological aspects 16 Social aspects 14 Emergency management 10 Political violence 10 Violence 10 World politics 10 Intelligence service 9 International cooperation 9 Islam and politics 9 Victims of terrorism 9 Moral and ethical aspects 8 Internal security 7 Security, International 7 less ...