Leif Wenar is this year a visiting professor at Princeton. From September 2008 he will hold the Chair in Ethics in the School of Law at King’s College London. He received his bachelor’s degree from Stanford and his PhD from Harvard, where he wrote his doctoral thesis on property rights with Robert Nozick. He has published widely on politics, international relations, and the law, including the recent articles “Accountability in International Development Aid” and “Are Liberal Peoples Peaceful?” (with Branko Milanovic) He is the co-editor of Hayek on Hayek: An Autobiographical Dialogue, and was recently a Fellow of the Program on Justice and the World Economy at the Carnegie Council on Ethics and International Affairs.