Civil rights National security Terrorism 22 Law and legislation 20 Prevention 20 Detention of persons 7 War on Terrorism, 2001-2009 5 more ... Human rights 4 Internal security 4 Politics and government 4 Access control 3 Criminal justice, Administration of 3 Government information 3 Government policy 3 Political aspects 3 Torture 3 War and emergency powers 3 Combatants and noncombatants (International law) 2 Electronic surveillance 2 Information technology 2 Intelligence service 2 International cooperation 2 Liberty 2 Political questions and judicial power 2 Privacy, Right of 2 Security, International 2 September 11 Terrorist Attacks, 2001 2 Costs 1 Crime prevention 1 Emigration and immigration law 1 less ...