If economics has been the “dismal science” of the past century, health policy promises to be that of the next. Health policy issues evoke far less passion than the emotion-laden immediacies of bedside decision making. Nevertheless, it is patent that “macro” issues in all their obscurity and complexity are unavoidable if the health care delivery system of the future is to be fiscally sound and publicly acceptable. In addition, as Americans are now learning, options for care at the bedside are ineluctably constrained by seemingly distant societal choices.

Justifying his proposal for “health savings accounts,” which would allow individuals to set aside tax-free dollars against future healthcare needs, President Bush has said that “Health savings accounts all aim at empowering people to make decisions for themselves.” Who could disagree with such a sentiment? Although bioethicists may be among those who express skepticism that personal health savings accounts will be part of the needed “fix” of our healthcare financing system, self determination has long been part of their mantra. Indeed, the field of bioethics played an important role in advancing this idea in the medical world when physician paternalism was regnant. Has its popularity caused it to become so vapid as to be ripe for misuse?

On September 4, 2001, press reports indicated that the Defense Intelligence Agency of the U.S. Department of Defense (DOD) planned to reproduce a strain of anthrax virus suspected of being held in Russian laboratories. According to the same reports, the Central Intelligence Agency (CIA), under the auspices of Project Clear Vision, is engaged in building replicas of bomblets believed to have been developed by the former Soviet Union. These small bombs were designed to disperse biological agents, including anthrax. Government attorneys were said to be confident that, because these projects were designed to develop defensive measures, they were not in violation of the 1972 Biological and Toxin Weapons Convention.

Public health ethics, like the field of public health it addresses, traditionally has focused more on practice and particular cases than on theory, with the result that some concepts, methods, and boundaries remain largely undefined. This paper attempts to provide a rough conceptual map of the terrain of public health ethics. We begin by briefly defining public health and identifying general features of the field that are particularly relevant for a discussion of public health ethics.

Public health is primarily concerned with the health of the entire population, rather than the health of individuals. Its features include an emphasis on the promotion of health and the prevention of disease and disability; the collection and use of epidemiological data, population surveillance, and other forms of empirical quantitative assessment; a recognition of the multidimensional nature of the determinants of health; and a focus on the complex interactions of many factors—biological, behavioral, social, and environmental—in developing effective interventions.

It has been a pleasure to read these papers and to contemplate their importance for what I believe to be a useful and provocative prism though which to view the field of bioethics: the nature of moral consensus. In my own most extended contribution to this literature, Deciding Together, I did not attempt to prescribe so much as to understand the role of moral consensus in the practice of bioethics. At the end of the book, I expressed the hope that it might help trigger an examination of bioethics and moral consensus. Though a few others shared my interest at that time (in particular Tris Engelhardt, for whose early encouragement I remain deeply grateful), with this set of stimulating papers the conversation has finally begun in earnest.