A pioneer in research on the human genome and head of the Broad Institute in Cambridge, Mass., Eric Lander is among 18 prominent scientists and bioethicists from seven countries who are calling for a moratorium on the creation of gene-edited babies.

A pioneer in research on the human genome and head of the Broad Institute in Cambridge, Mass., Eric Lander is among 18 prominent scientists and bioethicists from seven countries who are calling for a moratorium on the creation of gene-edited babies.