It’s too soon to know whether a Chinese researcher who claims to have successfully edited the genomes of newly born twins is telling the truth. But if he is, and if the girls turn out to be healthy and normal, it heralds a significant change in the scientific and ethical status of human gene editing. The outrage might not last long.
The consensus in the scientific community now is that human gene editing is medically dangerous and ethically wrong. Both of those beliefs are susceptible to changing, almost as fast as science is capable of progressing.