Genome editing, Goldilocks and polygenic risk scores

Heritable genome editing (HGE) is officially here. ‘Lulu’ and ‘Nana’, born in China, are the first children whose genomes have been intentionally modified. A third gene edited baby may have already been born. Scientists in Russia are planning similar applications.1 We recently argued that HGE should be judged by the same ethical standards that we apply to other technologies.2 There is a moral imperative to improve the health of future...