Prevention -- Terrorism -- 68 Government policy -- 19 Terrorism 16 International cooperation 14 National security -- 12 Prevention 10 more ... Government policy 9 Foreign relations -- 7 History -- 6 Corruption -- 5 Emergency management -- 5 Politics and government 5 Civil rights -- 4 Fiction 4 Government publications -- 4 War on terrorism, 2001- 4 Weapons of mass destruction 4 Civil defense -- 3 History. -- 3 Law and legislation -- 3 Military policy 3 Politics and government -- 3 Security, International 3 Terrorists -- 3 AIDS (Disease) -- 2 Conflict management -- 2 Counterinsurgency -- 2 Defenses 2 Drug abuse -- 2 less ...