Most comprehensively viewed, the international law of the sea comprises two very different sets of principles. One set of principles, establishing certain basic, overriding community goals, prescribes for all states the widest possible access to, and the fullest enjoyment of, the shared use of the great common resource of the oceans. The other set of principles, commonly described as jurisdictional, expresses certain implementing policies designed economically to secure the basic community goals of shared use by establishing a shared competence among states in a domain largely free from the exclusive public order of any particular state. The main outlines of the overriding principles prescribing shared use have long withstood the attacks of...