A ‘do-over’ meeting for setting embryo editing rules 

In a rare move, the National Academies of Sciences, Engineering, and Medicine has decided it needs a “do-over” on embryo editing. The last time an Academies committee tackled the controversial issue, in 2017, it laid out a guide to CRISPR-based editing in the hope of dissuading premature human experiments. The report ended up being more ambiguous than intended: A year later Chinese scientist He Jiankui announced the birth of twin girls whose embryos he edited using CRISPR. The kicker? He said he felt he checked all the committee’s boxes. As for what to expect tomorrow from the new International Commission on the Clinical Use of Human Germline Genome Editing, “I think the commission is hoping to be very, very prescriptive this time around,” STAT’s Sharon Begley told me. You can tune in to the meeting starting at 8:30 a.m. ET tomorrow here.