MIT Technology Review @techreview A media company making technology a greater force for good. Get our journalism: Jun. 03, 2019 1 min read

When this rogue Chinese scientist created the first gene-edited children, he dreamed of improving the world. Instead, he may have put the twin girls at risk of an early death. 

A new report finds that genetic mutations similar to those He Jiankui created, to a gene called CCR5, shortens people’s lives by an average of 1.9 years. 

This finding offers further evidence of how reckless the Chinese experiment was and is a warning light to anyone else seeking to enhance human beings using the gene-editing tool CRISPR. 

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