International migration is often considered a new development in world history. Yet, while there has been a surge in migration since World War II, the worldwide movement of peoples is a longstanding phenomenon. So, too, are the fundamental issues raised by immigration. How do immigrants fit into and affect the policy and society of the country they enter? What changes can or must the receiving nation make to accommodate them? What changes in culture and ethnic identity do immigrants undergo in their new habitat? How do they relate to the mix of peoples already present in their new homeland? What determines the policies that govern their reception and treatment? In this volume, edited by a leading American political scientist and a leading French historian, such renowned US scholars as Nathan Glazer, Peter A. Schuck, Lance Liebman, Myron Wiener, Maris A. Vinovskis, Martin Schain, Lawrence H. Fuchs, Stephan Thernstrom, Stanley Lieberson, and Philip Gleason, and a group of French experts on immigration, address a range of issues facing the US and France as a result of recent immigration. This volume is both a comparative social history and a legal and public policy and study in its portrayal of the dilemmas immigrants present and face.