Chinese scientist Dr Jiankui He flouted the law and bioethics basics to create the world's first CRISPR gene edited babies. Now out of jail, he's back on Twitter recruiting patients and raising funds for more trials, this time in adults not embryos. A dangerous distraction or a cautionary lesson for the world's scientists? Dr Joy Zhang has an extraordinary insider view after a recent encounter. Dr Katie Hasson is part of a global Coalition to Stop Designer Babies. They join Natasha Mitchell on Science Friction.
