When scientists used CRISPR to edit the DNA of human embryos, it made catastrophic mistakes. But now they've used a newer tool to make far more precise edits. Here's my story about how this changes the germline engineering debate. Gift link: nyti.ms/4uiBLOH
Researchers relied on a newer gene-editing technique that may make it possible to engineer embryos, a prospect that has long alarmed bioethicists.
