No designer babies, but summit calls for cautious research

In this photo taken Dec. 1,2015, Nobel laureate David Baltimore of CalTech speaks to reporters at the National Academy of Sciences international summit on the safety and ethics of human gene editing, in Washington. Organizers of an international summit say a tool to edit human genes is nowhere near ready to attempt in pregnancy but they're calling for more laboratory research with the revolutionary technology. Editing the human genetic code promises to lead to long sought rules for intractable diseases. But it also could be used to alter human heredity, passing genetic alterations to future generations. (AP Photo/Susan Walsh)WASHINGTON (AP) — A tool to edit human genes is nowhere near ready to use for pregnancy — but altering early embryos as part of careful laboratory research should be allowed as scientists and society continue to grapple with the ethical questions surrounding this revolutionary technology, organizers of an international summit concluded Thursday.

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