He is also part of the peace movement and international law study bodies. He served as Chair of Jurists, War Crimes and Crimes Against Humanity Tribunal at the Alternative World Summit in Toronto, 1989. His professional work has been published in over 150 books and journals, including Inquiry, the Monist, the Canadian Journal of Philosophy, Praxis International, the Encyclopaedia of Ethics, Atlantic Monthly, Guardian Weekly, and the Norton Anthology of Prose.
