Heinz Klug is Evjue-Bascom Professor of Law at the University of Wisconsin Law School, USA, and Visiting Professor of Law in the School of Law at the University of the Witwatersrand, Johannesburg, South Africa.Sanele Sibanda is Senior Lecturer at the Faculty of Law at the University of Pretoria, South Africa, where he teaches in the department of jurisprudence.Sindiso Mnisi Weeks is Assistant Professor in Public Policy of Excluded Populations at the University of Massachusetts Boston, USA, and Adjunct Associate Professor in Public Law at the University of Cape Town, South Africa.