A number of things may have gone wrong when researchers edited Chinese twins Lulu and Nana's genome. Either way, the failed experiment is a cautionary tale for us all.
A growing international divide over cutting-edge medical research could worsen predatory practices, medical tourism and health inequality.
CRISPR technology could have momentous effects if it's used to edit genes that will be inherited by future generations. Researchers and ethicists continue to weigh appropriate guidelines.
Imagine a future society where parents can choose the characteristics of their children. Does that turn babies into consumer products., and what choice does the child get?
To announce the world's first gene-edited babies, scientist He Jiankui did what movie directors do: release a trailer on YouTube. The video is a positive spin on unauthorized gene editing.
Chinese researcher He Jiankui told a spellbound audience how he created gene-edited babies. With a couple of revealing slides, we can see what he did and speculate what health problems might ensue.