Contents -- Preface -- I Background -- 1 Nuclear Peril -- 2 Scientific Disciplines in Isolation, 1: Those with Obvious Connections to Nuclear War -- 3 Scientific Disciplines in Isolation, 2: Those with Less Obvious Connections to Nuclear War -- II Science, Politics, and Carl Sagan: Through 1983 -- 4 The Origin of Nuclear Winter -- 5 Publicity -- 6 Concern about the Good Name of Science -- 7 Politics and the Arms Race -- 8 Policy and the Arms Race -- III A Cold Day in Hell: Activities and Antagonisms, 1984-85 -- 9 More Publicity -- 10 Inside the Beltway, 1984 -- 11 Bureaucracy and Bickering -- 12 Inside the Beltway, 1985 -- 13 A Frenzy of Research -- 14 Report after Report -- 15 Looking at Moscow -- 16 Strategic Analyses -- 17 More Policy Questions -- 18 Other Voices, and Some Echoes -- IV Smoldering Issues: 1986 and Afterward -- 19 Scientific Progress and Controversy -- 20 Politics and Policy -- 21 Evaluation -- Epilogue -- Notes -- Index.