Terrorism Prevention 123 Government policy 59 Foreign relations 37 History 37 National security 37 September 11 Terrorist Attacks, 2001 35 War on terrorism, 2001- 31 Politics and government 29 Religious aspects 29 United States 29 Islam 27 Thesis 26 Dissertations, Academic 21 Islamic fundamentalism 13 Intelligence service 12 Qaida (Organization) 12 Terrorists 11 Biography 10 Civil defense 9 Jihad 9 Military policy 9 Islam and politics 8 Law and legislation 8 Political violence 8 Islam and terrorism 7 Political aspects 7 War on Terrorism, 2001- 7 Emergency management 6 Juvenile literature 6