This comparative study examines the dialectical tensions between global and regional interdependence and the fragmentation of humankind into territorial entities. Political authority may remain territory-bound, but borders increasingly are penetrated by pollutants, individuals, noncentral governments in search of foreign trade and investment, and transnational corporations, as well as the traditional exchanges of trade, media, and culture. The result of these transborder flows, accelerated by new technologies, is a new variety of international relations among “perforated sovereignties.â€...