The primary ethical problems with CRISPR in humans so far have come from “germ line” genetic engineering.
Scientists just took a big step toward making that once unthinkable prospect — biological males giving birth — a reality.
I won’t recap the splendid work Emily Reeves has already done here in dissecting the TEDx talk from a scientific angle.
Biology is a lavish display of sophisticated designs exceeding all human engineering to date.
This technology is still a long time from the potential for human application, but it presents issues we need to address now.