Government policy -- Terrorism -- 29 Prevention -- 14 Foreign relations -- 11 National security -- 7 Politics and government -- 6 Prevention. -- 6 more ... Government policy 5 History -- 5 Nuclear weapons -- 5 Terrorism 5 War on Terrorism, 2001-2009 5 Nuclear arms control -- 3 War on terrorism, 2001- 3 Aeronautics, Commercial -- 2 Case studies 2 Economic aspects -- 2 Economic sanctions, American 2 Evaluation. -- 2 Human rights -- 2 Intelligence service -- 2 Military policy 2 Petroleum industry and trade -- 2 Politics and government 2 Relations 2 Security measures 2 Security measures -- 2 Terrorists -- 2 World politics -- 2 Administrative agencies -- 1 less ...