Chris Greig

Theodora D. ’78 & William H. Walton III ’74 Senior Research Scientist in the Andlinger Center for Energy and the Environment, Princeton University

Stephen Kotkin

Senior fellow, Freeman Spogli Institute for International Studies, and the Kleinheinz senior fellow, Hoover Institution, Stanford University (United States)

Peter Singer

Ira W. DeCamp Professor of Bioethics, University Center for Human Values