Arthur L. Caplan

Arthur L. Caplan, Ph.D., is Emmanuel and Robert Hart Professor of Bioethics, Chair of the Department of Medical Ethics, and the Director of the Center for Bioethics at the University of Pennsylvania. He is the author or editor of 25 books and more than 500 professional papers. He writes a regular column on bioethics for MSNBC.com and is a frequent guest and commentator in other media outlets.