Foreign relations 597 Law and legislation 532 Double taxation 238 Politics and government 221 Economic assistance, American 211 Diplomatic relations 173 International cooperation 172 Judicial assistance 149 Foreign economic relations 146 Military assistance, American 144 Income tax 132 Officials and employees 125 Prevention 124 National security 106 Nuclear nonproliferation 99 Government policy 98 Investments, American 91 Investments, Foreign 91 Extradition 89 Appropriations and expenditures 88 Selection and appointment 83 Armed Forces 80 Terrorism 71 Human rights 68 Nuclear arms control 68 Diplomatic and consular service, American 59 Nuclear weapons 54 Criminal justice, Administration of 53 Military policy 53 Drug control 48