This book provides a thorough legal analysis of the United States Migrant Interdiction Program, examining the United States’ compliance with its obligations under municipal and international law as it interdicts individuals at sea, conducts status determinations, and returns those interdicted to their home countries. This book also examines the rights of the small number of refugees and individuals at risk of torture detained in Guantanamo Bay, Cuba, awaiting resettlement in third countries. Policy-makers, students and scholars will benefit from this book’s clarification of the legal obligations of nations engaged in extraterritorial status determination and detention, as well as its blueprint for compliance with international human rights and refugee law. As the first book of its kind devoted to the United States’ interdiction program, this work represents an important contribution to scholarship in refugee law and policy, US constitutional law, international maritime law, and international human rights law.