The process of U.S. adherence to treaties and other international agreements is closely scrutinized as the authors examine how such law, as well as customary international law and the law-making acts of international organizations, can become a source of U.S. law. Individual chapters focus on the special challenges posed by the exercise of war powers by the federal government (including during recent incidents of international armed conflict), the complex role of the several states in foreign affairs, and the imperative to protect individual rights in the transnational sphere.
Among the contemporary issues discussed are the immunity of foreign heads of State, treatment of detainees at Guantánamo, movement of the U.S. Embassy in Israel to Jerusalem, state-level foreign compacts to address climate change, bans affecting refugees and asylum-seekers, and recent interpretations of key statutes, such as the Alien Tort Statute, the Torture Victim Protection Act, and the Foreign Sovereign Immunities Act.