The United States was one of only seven nations to vote against the treaty. The ensuing debate within the United States has properly focused on whether the United States can and should ratify the treaty or, if not, whether as a non-party the United States should support or oppose the new court. Largely overlooked, however, are two separate but related questions: (1) should the existing, incomplete jurisdiction of U.S. courts over crimes within the ICC Statute be expanded to ensure that such crimes may also be prosecuted in U.S. courts, under universal jurisdiction or other bases allowed by international law?; (2) should the existing, incomplete codification in the United States of crimes within the ICC Statute likewise be expanded to ensure that they are also crimes under our national law? This Essay suggests that the answer to both questions is yes.