Chinese Scientist Claims He's Created World's First Gene-Edited Babies

A Chinese researcher says he used the gene editing technology CRISPR to alter the DNA of twin girls born earlier this month when the babies were embryos. If the scientist's claims prove true, the newborns are the world's first humans to be genetically modified as embryos. It would be a significant step, and it's raised widespread ethical concerns among researchers. He Jiankui, the scientist who led the effort, announced the outcome in a promotional video on YouTube Sunday, just days ahead