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74Procreative Altruism: Beyond Individualism in Reproductive SelectionJournal of Medicine and Philosophy 38 (4): 400-419. 2013.Existing debate on procreative selection focuses on the well-being of the future child. However, selection decisions can also have significant effects on the well-being of others. Moreover, these effects may run in opposing directions; some traits conducive to the well-being of the selected child may be harmful to others, whereas other traits that limit the child’s well-being may preserve or increase that of others. Prominent selection principles defended to date instruct parents to select a chi…Read more
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257Human enhancement and supra-personal moral statusPhilosophical Studies 162 (3): 473-497. 2013.Several authors have speculated that (1) the pharmaceutical, genetic or other technological enhancement of human mental capacities could result in the creation of beings with greater moral status than persons, and (2) the creation of such beings would harm ordinary, unenhanced humans, perhaps by reducing their immunity to permissible harm. These claims have been taken to ground moral objections to the unrestrained pursuit of human enhancement. In recent work, Allen Buchanan responds to these obj…Read more
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88Genome Editing Technologies and Human Germline Genetic Modification: The Hinxton Group Consensus StatementAmerican Journal of Bioethics 15 (12): 42-47. 2015.The prospect of using genome technologies to modify the human germline has raised profound moral disagreement but also emphasizes the need for wide-ranging discussion and a well-informed policy response. The Hinxton Group brought together scientists, ethicists, policymakers, and journal editors for an international, interdisciplinary meeting on this subject. This consensus statement formulated by the group calls for support of genome editing research and the development of a scientific roadmap f…Read more
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339Stocking the Genetic Supermarket: Reproductive Genetic Technologies and Collective Action ProblemsBioethics 29 (4): 241-250. 2014.Reproductive genetic technologies allow parents to decide whether their future children will have or lack certain genetic predispositions. A popular model that has been proposed for regulating access to RGTs is the ‘genetic supermarket’. In the genetic supermarket, parents are free to make decisions about which genes to select for their children with little state interference. One possible consequence of the genetic supermarket is that collective action problems will arise: if rational individua…Read more
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18Stem cell-derived gametes, iterated in vitro reproduction, and genetic parenthoodJournal of Medical Ethics 40 (11): 723-724. 2014.Robert Sparrow has recently raised the possibility that stem cell technology could in the future be used to create multiple generations of embryos in the laboratory before transferring one embryo to a woman’s womb to create a pregnancy. Sparrow argues that any children produced in this way would be genetic orphans—they would lack living genetic parents—and explores the possible moral implications of this. A number of other authors have raised objections to Sparrow’s moral claims, but his descrip…Read more
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261Moral enhancement via direct emotion modulation: A reply to John HarrisBioethics 27 (3): 160-168. 2011.Some argue that humans should enhance their moral capacities by adopting institutions that facilitate morally good motives and behaviour. I have defended a parallel claim: that we could permissibly use biomedical technologies to enhance our moral capacities, for example by attenuating certain counter-moral emotions. John Harris has recently responded to my argument by raising three concerns about the direct modulation of emotions as a means to moral enhancement. He argues that such means will be…Read more
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108Coercion, Incarceration, and Chemical Castration: An Argument From AutonomyJournal of Bioethical Inquiry 10 (3): 393-405. 2013.In several jurisdictions, sex offenders may be offered chemical castration as an alternative to further incarceration. In some, agreement to chemical castration may be made a formal condition of parole or release. In others, refusal to undergo chemical castration can increase the likelihood of further incarceration though no formal link is made between the two. Offering chemical castration as an alternative to further incarceration is often said to be partially coercive, thus rendering the offen…Read more
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3254Consequentialism and the Death PenaltyAmerican Journal of Bioethics 8 (10): 56-58. 2008.Comment on "The ethical 'elephant' in the death penalty 'room'". Arguments in defense of the death penalty typically fall into one of two groups. Consequentialist arguments point out beneficial aspects of capital punishment, normally focusing on deterrence, while non-consequentialist arguments seek to justify execution independently of its effects, for example, by appealing to the concept of retribution. Michael Keane's target article "The ethical 'elephant' in the death penalty 'room'" should…Read more
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51The Harms of Enhancement and the Conclusive Reasons ViewCambridge Quarterly of Healthcare Ethics 24 (1): 23-36. 2015.:Many critics of bioenhancement go to considerable lengths to establish the existence of reasons against pursuing bioenhancements but do little to establish the absence of reasons in favor. This suggests that they accept what Allen Buchanan has called the conclusive reasons view. According to this view, our reasons against bioenhancement are obviously decisive, so there is no need to balance them against countervailing reasons. Buchanan criticizes the CRV by showing that the reasons most commonl…Read more
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774Resisting Sparrow's Sexy Reductio : Selection Principles and the Social GoodAmerican Journal of Bioethics 10 (7): 16-18. 2010.Principles of procreative beneficence (PPBs) hold that parents have good reasons to select the child with the best life prospects. Sparrow (2010) claims that PPBs imply that we should select only female children, unlesswe attach normative significance to “normal” human capacities. We argue that this claim fails on both empirical and logical grounds. Empirically, Sparrow’s argument for greater female wellbeing rests on a selective reading of the evidence and the incorrect assumption that an advan…Read more
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120Intertemporal disagreement and empirical slippery slope argumentsUtilitas 22 (2): 184-197. 2010.One prevalent type of slippery slope argument has the following form: (1) by doing some initial act now, we will bring it about that we subsequently do some more extreme version of this act, and (2) we should not bring it about that we do this further act, therefore (3) we should not do the initial act. Such arguments are frequently regarded as mistaken, often on the grounds that they rely on speculative or insufficiently strong empirical premises. In this article I point out another location at…Read more
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