Terrorism -- War on Terrorism, 2001-2009 17 Government policy -- 9 Foreign relations -- 7 Prevention. -- 5 September 11 Terrorist Attacks, 2001 5 National security -- 4 more ... Politics and government -- 4 Evaluation. -- 3 Intelligence service -- 3 Prevention 3 Security measures 3 Aeronautics, Commercial -- 2 Civil rights -- 2 Islamic fundamentalism 2 World politics -- 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 Foreign public opinion 1 Globalization 1 Governmental investigations -- 1 Harbors -- 1 Interviews -- 1 Islam 1 less ...