Formerly: Vice-President and University Professor, Brown University. Currently, Manley O. Hudson Professor of Law and Director, Institute for Global Law and Policy, Harvard Law School. Lawyer and consultant with international institutions, including: UNHCR; EU Commission; national governments; PricewaterhouseCoopers; Cleary, Gottlieb, Steen and Hamilton. Law Professor, School for Oriental and African Studies, University of London. Author.