Is Designing Babies Unethical—or a Moral Imperative?

In May of this year, it was announced that doctors at Children’s Hospital of Philadelphia used CRISPR—the revolutionary gene-editing technology—to save the life of a baby boy born with a rare, often fatal genetic disorder. It was the first time a personalized CRISPR therapy had ever been administered to a human being.

A few years ago, a Chinese biophysic…