Abstract
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...