Today, no countries have open borders. Every state in today’s global system has its own laws and policies about who is permitted to cross its borders, and how they will do so. Who determines whether someone is a refugee or a migrant? How have different countries, including the United States, reacted to migration? How effective are the international laws, policies and organizations that have evolved to assist and protect refugees and migrants? A debate and discussion among equals produced by The Foreign Policy Association and facilitated by Martin Levinson, Ph.D.