The rumors were true: Scientists edited the genomes of human embryos for the first time

In March, a rumor surfaced in the scientific community that was intriguing, and perhaps a bit chilling: According to those in the know, researchers in China had successfully edited the genomes of human embryos, altering their DNA in a way never accomplished in our own species. MIT Technology Review reported on the murmurings that someone had altered the germ line -- the genetic information that come together and form something new when eggs and sperm collide.
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