From the first initiatives in preimplantation genetic diagnosis and gene therapy through the advent of stem cell research to the development of mammalian cloning, the past two decades have witnessed remarkable advances in “reprogenetic” medicine: the union of assisted reproductive technologies with genetic control. This period has also been marked by intense debates within the bioethical literature and in national policy forums about the appropriate uses of these emerging human capabilities. We can now, in a limited way, select for genetic (...) traits, and the power to modify the genome or introduce new gene sequences is not far off. How should these new powers be used? (shrink)