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A Chinese researcher claims that he helped make the world’s first genetically edited babies — twin girls whose DNA he said he altered with a powerful new tool capable of rewriting the very blueprint of life. If true, it would be a profound leap of science and ethics.
Many mainstream scientists think it’s too unsafe to try, and some denounced the Chinese report as human experimentation.
He said his goal was not to cure or prevent an inherited disease, but to try to bestow a trait that few people naturally have — an ability to resist possible future infection with HIV, the AIDS virus.