National security -- 18 Military policy 7 Prevention -- 4 Terrorism -- 4 Civil rights -- 3 World politics -- 3 Armed forces 2 more ... Civil defense -- 2 Defenses 2 Government policy -- 2 Politics and government -- 2 Security, International 2 Appropriations and expenditures 1 Constructing out -- 1 Developing countries -- 1 Emergency management -- 1 Foeign relations -- 1 Foreign economic relations -- 1 Foreign relations 1 Foreign relations -- 1 Government contractors -- 1 Law enforcement -- 1 Military assistance, American 1 Military relations 1 Munitions -- 1 National security 1 Nuclear terrorism 1 Nuclear weapons -- 1 Presidents -- 1 Privatization -- 1 less ...