The past decade has been marked by an increase in scholarly efforts to bridge the gap between the study of international relations as undertaken by political scientists and the study of international law as undertaken by legal scholars. During the Cold War, when international norms seemed distinctly secondary to ad hoc cost-benefit calculations as influences on state behavior, political scientists largely dismissed international law as rank idealism. International cooperation has palpably broadened and deepened in the current era, and political scientists have started to take a second look.