The themes addressed are of great significance for contemporary societies in many parts of the world, including Europe and North America, and although the volume focuses principally on the European context, it also addresses the theme on an international level. Contributions look at the transnational intertextuality of the debate, as well as comparing approaches to regulation in different countries (notably between the European Court of Human Rights and the United States Supreme Court). This book was originally published as a special issue of the Journal of Ethnic and Migration Studies.