To what extent should we use technological advances to try to make better human beings? Leading philosophers debate the possibility of enhancing human cognition, mood, personality, and physical performance, and controlling aging. Would this take us beyond the bounds of human nature? These are questions that need to be answered now.

In discussions of the ethics of human gene therapy, it has become standard to draw a distinction between the use of human gene transfer techniques to treat health problems and their use to enhance or improve normal human traits. Some dispute the normative force of this distinction by arguing that it is undercut by the legitimate medical use of human gene transfer techniques to prevent disease - such as genetic engineering to bolster immune function, improve the efficiency of DNA repair, (...) or add cellular receptors to capture and process cholesterol. If disease prevention is a proper goal of medicine, these critics argue, and the use of gene transfer techniques to enhance human health maintenance capacities will help achieve that goal, then the “treatment/enhancement‘ distinction cannot define the limits of legitimate gene therapy. In this paper, I argue that a line can be drawn between prevention and enhancement for gene therapy (and thus between properly medical and nonmedical uses of gene therapy), but only if one is willing to accept two rather old-fashioned claims: 1) Some health problems are best understood as if they were entities in their own right, reifiable as processes or parts in a biological system, with at least as much ontological objectivity and theoretical significance as the functions that they inhibit. 2) Legitimate preventive genetic health care should be limited to efforts to defend people from attack by these more robust pathological entities, rather than changing their bodies to evade social injustices. (shrink)

The treatment-enhancement distinction draws a line between services or interventions meant to prevent or cure conditions that we view as diseases or disabilities and interventions that improve a condition that we view as a normal function or feature of members of our species. The line drawn here is widely appealed to in medical practice and medical insurance contexts, as well as in our everyday thinking about the medical services we do and should assist people in obtaining.

v. 1. Editorial introduction -- v. 2. The English and Latin texts (i) -- v. 3. The English and Latin texts (ii).

New scientific advances have created previously unheard of possibilities for enhancing combatants' performance. Future war fighters may be smarter, stronger, and braver than ever before. If these technologies are safe, is there any reason to reject their use? In this article, I argue that the use of enhancements is constrained by the importance of maintaining the moral responsibility of military personnel. This is crucial for two reasons: the military's ethical commitments require military personnel to be morally responsible agents, and moral (...) responsibility is necessary for integrity and the moral emotions of guilt and remorse, both of which are important for moral growth and psychological well-being. Enhancements that undermined combatants' moral responsibility would therefore undermine the military's moral standing and would harm combatants' well-being. A genuine commitment to maintaining the military's ethical standards and the well-being of combatants therefore requires a careful analysis of performance-enhancing technologies before they are implemented. (shrink)

The United States Army’s Future Combat Systems Project, which aims to manufacture a “robot army” to be ready for deployment by 2012, is only the latest and most dramatic example of military interest in the use of artificially intelligent systems in modern warfare. This paper considers the ethics of a decision to send artificially intelligent robots into war, by asking who we should hold responsible when an autonomous weapon system is involved in an atrocity of the sort that would normally (...) be described as a war crime. A number of possible loci of responsibility for robot war crimes are canvassed; the persons who designed or programmed the system, the commanding officer who ordered its use, the machine itself. I argue that in fact none of these are ultimately satisfactory. Yet it is a necessary condition for fighting a just war, under the principle of jus in bellum, that someone can be justly held responsible for deaths that occur in the course of the war. As this condition cannot be met in relation to deaths caused by an autonomous weapon system it would therefore be unethical to deploy such systems in warfare. (shrink)

Thomas Hobbes took a new look at the ways in which society should function, and he ended up formulating the concept of political science. His crowning achievement, Leviathan, remains among the greatest works in the history of ideas. Written during a moment in English history when the political and social structures as well as methods of science were in flux and open to interpretation, Leviathan played an essential role in the development of the modern world. This edition of Hobbes' landmark (...) work is based on the original text. It incorporates the author's own corrections and retains the period spelling and punctuation, offering both flavorful authenticity and the utmost clarity of expression. (shrink)

The U.S. military has started to construct and deploy robotic weapons systems. Although human controllers may still be monitoring the functioning of the technology, the next logical step is to transfer incrementally more of the decision-making power to the robots themselves. Thus, this article seeks to examine the ethical implications of the creation and use of "autonomous weapons systems.".

A detailed study of scientific theories of human nature and the possible ways in which human behavior can be predicted and controlled.

This article is based on a public lecture hosted by the Monash University Centre for Human Bioethics in Melbourne, Australia on 11 April 2013. The lecture recording was transcribed by Vicky Ryan; and, the original transcript has been edited — for clarity and brevity — by Vicky Ryan, Michael Selgelid and Jonathan Moreno.

This paper presents the principal findings from a three-year research project funded by the US National Science Foundation on ethics of human enhancement technologies. To help untangle this ongoing debate, we have organized the discussion as a list of questions and answers, starting with background issues and moving to specific concerns, including: freedom & autonomy, health & safety, fairness & equity, societal disruption, and human dignity. Each question-and-answer pair is largely self-contained, allowing the reader to skip to those issues of (...) interest without affecting continuity. (shrink)