As international law grows and spreads into non-traditional areas such as the international ecosystem, the global economy, and human rights, some say it is becoming fragmented. This notion can actually appeal to those scholars who want to become experts in a fragment without having the burden of connecting it to the rest of international law. Another group views the idea of isolated specialization with apprehension; they feel that international law is and must be a coherent set of principles and rules—coherent in the sense that no member of the set contradicts any other member. The burden of resolving the tension between the two groups seems unfairly allocated: the first group simply asserts that international law is incoherently pluralisti...