Political theorists have long debated the question of open borders. Do states have a right to exclude migrants from their territory? Is there a human right to immigrate? The focus has been on the external borders of states. Yet, in the forthcoming book Immigration and Freedom, Professor Chandran Kukathas, Chair in Political Theory and Head of the Department of Government at the London School of Economics, argues that political theorists must also consider internal border controls, such as restrictions on employers, landlords and universities. According to Kukathas, these internal controls do not just restrict the freedom of migrants, but of current citizens and residents too.
