20151201_me_international_summit_to_debate_editing_human_dna.mp3?orgId=1&topicId=1024&d=231&p=3&story=457974663&t=progseg&e=457973985&seg=7&ft=nprml&f=457974663

Copyright 2016 NPR. To see more, visit http://www.npr.org/.