What do we do now?: Responding to claims of germline gene editing in humans

In November 2018, the scientific community was rocked when He Jiankui, a Chinese biophysicist, claimed that he had overseen the birth of twin girls from embryos gene-edited at CCR5, a gene associated with resistance to HIV.1 He claimed that the infants were healthy and promised to provide sequencing data but declined to make the babies available for medical evaluation, ostensibly for their protection. (Chinese officials have since confirmed that...