Dan Brock is the Frances Glessner Lee Professor of Medical Ethics, Emeritus, in the Department of Global Health and Social Medicine. Prior to his arrival at Harvard, Professor Brock was Senior Scientist and a member of the Department of Clinical Bioethics at the National Institutes of Health. Until July 2002, he was Charles C. Tillinghast, Jr. University Professor, Professor of Philosophy and Biomedical Ethics, and Director of the Center for Biomedical Ethics at Brown University where he had a joint appointment in the Philosophy Department (of which he was Chair in 1980-86) and in the Medical School. He served as Staff Philosopher on the President’s Commission for the Study of Ethical Problems in Medicine in 1981-82, and in 1993 was a member of the Ethics Working Group of the Clinton Task Force on National Health Reform. He has been a consultant in biomedical ethics and health policy to numerous national and international bodies, including the Office of Technology Assessment of the U.S. Congress, the Institute of Medicine, the National Bioethics Advisory Commission, and the World Health Organization. He is a Fellow and former member of the Board of Directors of the Hastings Center, and was a Fellow in the Ethics and Professions’ Program and in the Division of Medical Ethics at Harvard University in 1991-92. He was President of the American Association of Bioethics in 1995-96, and was a founding Board Member of the American Society for Bioethics and Humanities. He is the author of over 150 articles in bioethics and in moral and political philosophy, which have appeared in books and refereed scholarly journals, including the New England Journal of Medicine, JAMA, Science, Hastings Center Report, Philosophy and Public Affairs, and Ethics. He is the author of Deciding For Others: The Ethics of Surrogate Decision Making, 1989, (with Allen E. Buchanan), Life and Death: Philosophical Essays in Biomedical Ethics, 1993, and From Chance to Choice: Genetics and Justice (with Allen Buchanan, Norman Daniels and Daniel Wikler) 2000, all published by Cambridge University Press. He is currently an editorial board member of 12 professional journals in ethics, bioethics and health policy, and has lectured widely at national and international conferences, professional societies, universities, and health care institutions.