Terrorism Prevention 142 History 72 Government policy 68 Religious aspects 63 Islam 56 War on Terrorism, 2001-2009 47 more ... Terrorists 41 International relations 38 September 11 Terrorist Attacks, 2001 36 Politics and government 30 Foreign relations 28 Jihad 24 National security 23 Islamic fundamentalism 20 Psychological aspects 20 Political aspects 18 Psychology 18 Social aspects 16 Violence 15 Political violence 14 Emergency management 10 Islam and politics 10 Victims of terrorism 10 World politics 10 Intelligence service 9 International cooperation 9 Moral and ethical aspects 9 Economic aspects 8 Security measures 8 less ...