The writer is a science commentator
Every emerging technology has its dreamers and schemers. That is certainly true of human genome editing, the focus of a high-profile global summit held this week at the Francis Crick Institute in London.
Among the dreamers is Harvard University biochemist David Liu, whose talk on Monday featured news of Alyssa, a British teenager now in remission from leukaemia after receiving donated T-cells edited using a technique developed in his lab.
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