Terrorism -- War on Terrorism, 2001-2009 Government policy -- 9 Prevention 8 Foreign relations -- 7 Prevention. -- 5 September 11 Terrorist Attacks, 2001 5 more ... National security -- 4 Politics and government -- 4 Evaluation. -- 3 Intelligence service -- 3 Islamic fundamentalism 3 Security measures 3 World politics -- 3 Aeronautics, Commercial -- 2 Civil rights -- 2 Islam 2 Religious aspects -- 2 Terrorism 2 Anti-Americanism 1 Civil defense 1 Civil defense -- 1 Combatants and noncombatants (International Law) 1 Counterinsurgency -- 1 Defenses 1 Detention of persons -- 1 Executive power -- 1 Finance 1 Finance -- 1 Foreign public opinion 1 less ...