Hurt Butt News Today

Altering human kind. >> we are at a hinge of human history. >> reporter: the leading bioethicist. the doctor consulted with him. >> we would talk about the seriousness of the issues, and in a sort of step-wise way, what you had to do to make sure it was done right. but when i heard that there were live-born children from it, i thought, oh, my gosh, he just jumped ahead. >> reporter: he knew nothing of the plans to edit human embryos. the doctor studied at stanford as a post doctor fellow. hurt b...