Congresses Congresses -- 6 Foreign relations -- 3 National security -- 3 Economic conditions -- 2 Acid rain -- 1 Case Studies -- 1 more ... Case studies -- 1 Data processing -- 1 Decision making -- 1 Diffusion of innovations -- 1 Economic assistance, American -- 1 Environmental law, International -- 1 Information technology -- 1 Law and legislation -- 1 Peace-building -- 1 Political violence -- 1 Pollution -- 1 Poverty -- 1 Public-private sector cooperation -- 1 Relations -- 1 Social policy -- 1 less ...