Robert Streiffer

Experiments involving the transplantation of human stem cells and their derivatives into early fetal or embryonic nonhuman animals raise novel ethical issues due to their possible implications for enhancing the moral status of the chimeric individual. Although status-enhancing research is not necessarily objectionable from the perspective of the chimeric individual, there are grounds for objecting to it in the conditions in which it is likely to occur. Translating this ethical conclusion into a policy recommendation, however, iscomplicated by the fact that substantial empirical and ethical uncertainties remain about which transplants, if any, would significantly enhance the chimeric individual’s moral status. Considerations of moral status justify either an early-termination policy on chimeric embryos, or, in the absence of such a policy, restrictions on the introduction of pluripotent human stem cells into early-stage developing animals, pending the resolution of those uncertainties.

The current debate about labeling genetically engineered (GE) food focuses on food derived from GE crops, neglecting food derived from GE animals. This is not surprising, as GE animal products have not yet reached the market. Participants in the debate may also be assuming that conclusions about GE crops automatically extend to GE animals. But there are two GE animals - the Enviropig and the AquAdvantage Bred salmon - that are approaching the market, animals raise more ethical issues than plants, and U.S. regulations treat animal products differently from crops. This paper therefore examines the specific question of whether there should be mandatory labeling on all food products derived from GE animals. We examine the likely regulatory pathways, salient differences between GE animals and GE crops, and relevant social science research on consumers’ attitudes. We argue that on any of the likely pathways, the relevant agency has a democratic obligation to require labeling for all GE animal food products.