Government policy Terrorism Prevention 298 National security 109 War on Terrorism, 2001-2009 55 Foreign relations 54 Intelligence service 32 more ... Politics and government 31 Law and legislation 29 Emergency management 25 September 11 Terrorist Attacks, 2001 25 Terrorists 25 International relations 23 Security measures 22 Civil rights 21 International cooperation 21 Military policy 21 Civil defense 18 Finance 18 Political aspects 18 Evaluation 17 History 16 Emigration and immigration 15 Noncitizens 15 Security, International 15 Religious aspects 14 Rules and practice 13 Islam 12 Planning 12 Social aspects 12 less ...