Politics and government -- Terrorism -- 7 Government policy -- 3 National security -- 3 Prevention -- 3 Prevention. -- 3 War on Terrorism, 2001-2009 3 more ... Civil rights -- 2 Foreign relations -- 2 Case studies 1 Civil defense 1 Civil defense -- 1 Combatants and noncombatants (International Law) 1 Defenses 1 Detention of persons -- 1 Economic sanctions, American 1 Executive power -- 1 Harbors -- 1 Intelligence service -- 1 Legal status, laws, etc -- 1 Merchant marine -- 1 National security 1 Nuclear weapons information -- 1 Planning. -- 1 Politics and government 1 Prevention 1 Relations 1 Security measures 1 Security measures -- 1 Terrorists -- 1 less ...