The war on terrorism has rapidly increased the importance of international law in the United States. U.S. courts have seen a substantial increase in cases raising issues of international law, and judges have expressed a growing interest in, and appreciation for the topic. This heightened internationalism in the U.S. judiciary has been extremely controversial because of the level of interpretation inherent in the application of international law in our domestic courts. International Law in the U.S. Legal System decodes the often complicated ways that international law operates within the United States legal system and sheds light on unresolved issues and areas of controversy. The book covers all of the principal forms of international law including treaties, decisions and orders of international institutions, customary international law, jus cogens norms, and general principles. It also explores a number of issues that are implicated by the intersection of U.S. law and international law, such as foreign sovereign immunity, international human rights litigation, extradition, and extraterritoriality.