Given recent advancements in CRISPR‐Cas9 powered genetic modification of gametes and embryos, both popular media and scientific articles are hailing CRISPR’s life‐saving, curative potential for people with serious monogenic diseases. But claims that CRISPR modification of gametes or embryos, a form of germline engineering, has therapeutic value are deeply mistaken. This article explains why reproductive uses of CRISPR, and germline engineering more generally, do not treat or save lives that would otherwise have a genetic disease. Reproductive uses of CRISPR create (...) healthy people whose existence is not inevitable in the first place. Creating healthy lives has distinct and lesser moral value from saving or curing lives that would otherwise have genetic disease. The real value in reproductive uses of CRISPR is in helping a very limited population of people have healthy, genetically related children. This diminished value cannot compete with the concerns in opposition to germline engineering, nor is it worth the investment of research money. (shrink)

The publication of the first study to use gene editing techniques in human embryos (Liang et al., 2015) has drawn outrage from many in the scientific community. The prestigious scientific journals Nature and Science have published commentaries which call for this research to be strongly discouraged or halted all together (Lanphier et al., 2015; Baltimore et al., 2015). We believe this should be questioned. There is a moral imperative to continue this research.

Among the objections to the implementation of what I will call "genome editing in human reproduction" is that it does not address any unmet medical need, and therefore fails to meet an important criterion for introducing an unproven procedure with potentially adverse consequences. To be clear: what I mean by GEHR is the use of any one of a number of related biological techniques, such as the CRISPR-Cas9 system, deliberately to modify a functional sequence of DNA in a cell of (...) a human embryo, so that the modified sequence is replicated in the cells of a resulting child and may, without further intervention, be passed on to that child's biological descendants. It is... (shrink)

Recently it has been argued that some instances of germ‐line gene therapy will change the identity of the person who receives the benefit of therapy, and that in these instances there is no good moral reason to conduct germ‐line gene therapy. Against this we argue that even if gene therapy should have an effect on the identity of the resulting person, this would not diminish the urgency of the therapy. Not only would impersonal moral reasons speak in favour of such (...) radical gene therapy, there would also be person‐affecting reasons to perform it. (shrink)