The Presidential Daily Brief

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    Chinese Scientist Announces Birth of First Gene-Edited Babies

    Is the genie out of the bottle? Researcher He Jiankui says he tweaked the DNA of embryos from seven couples during fertility treatments, leading to the successful birth this month of genetically altered twin girls. His work, which has not yet been published or independently confirmed, aimed to disable embryos’ CCR5 genes in order to prevent HIV infection. While critics decried his work as “unconscionable” and “premature” — editing sperm, eggs or embryos is banned in the U.S. — He said, “Society will decide what to do next.”

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