Scientists Concerned Latest Gene Editing of Human Embryos Could “Open the Floodgates”

Editing the genes of a human embryo remains highly controversial, particularly after Chinese scientist He Jiankui shocked the world eight years ago by doing just that using the popular gene-editing technique CRISPR — and then allowing the embryos to be carried to term and born. Proponents say the tech could allow us to treat diseases in powerful new ways, while critics liken it to eugenics, arguing it could set a dangerous precedent by allowing parents to select certain desirable traits. It should therefore come to no surprise that the most recent attempt to edit human zygotes, embryos at their earliest...