Mark B. Adams, Ph.D. University of Pennsylvania Diogenes Allen, Ph.D. Princeton Theological Seminary Robert Arking, Ph.D. Wayne State University Rev. Calvin O. Butts, III, D.Min. Abyssinian Baptist Church (New York City) Daniel Callahan, Ph.D. The Hastings Center (Garrison, NY) Arthur L. Caplan, Ph.D. Center for Bioethics University of Pennsylvania Health System Audrey R. Chapman, Ph.D., M.Div. American Association for the Advancement of Science Ronald Cole-Turner, Ph.D., M.Div. Pittsburgh Theological Seminary Michael B. Fossel, M.D., Ph.D. Michigan State University Medical School Neil Gillman, Rabbi, Ph.D. The Jewish Theological Seminary Charles L. Harper, Jr., D.Phil. John Templeton Foundation Leonard Hayflick, Ph.D. University of California, San Francisco William B. Hurlbut, M.D. Stanford University Leon R. Kass, M.D., Ph.D. University of Chicago Robert P. Lanza, M.D. Advanced Cell Technology, Inc. Father Richard John Neuhaus Institute on Religion and Public Life Thomas B. Okarma, Ph.D., M.D. Geron Corporation Elaine H. Pagels, Ph.D. Princeton University Ted Peters, Ph.D. Pacific Lutheran Theological Seminary, Graduate Theological Union, and Center for Theology and the Natural Sciences Robert E. Pollack, Ph.D. Columbia University Stephen G. Post, Ph.D. Center for Biomedical Ethics, School of Medicine Case Western Reserve University Michael R. Rose, D.Phil. University of California, Irvine Lee M. Silver, Ph.D. Princeton University Gregory Stock, Ph.D. University of California, Los Angeles School of Medicine Eleonore P. Stump, Ph.D. Saint Louis University Michael D. West, Ph.D. Advanced Cell Technology, Inc. Mark E. Westhusin, Ph.D. Texas A&M University Rabbi Gerald I. Wolpe, Ph.D. Center for Bioethics University of Pennsylvania Health System Paul Root Wolpe, Ph.D. Center for Bioethics and Departments of Psychiatry and of Sociology University of Pennsylvania Health System