While US lawmakers and scientists clash over the cloning of human embryonic stem cells for therapy, researchers in the United Kingdom enjoy a peaceful regulatory climate, fueling speculation that US scientists may flee to freer shores.

The Bush administration's delay in issuing a policy on research with material derived from human embryonic stem cells--which may have potential for healing degenerative conditions like Alzheimer's and diabetes--might send some of America's best minds overseas, predicts Harry Griffin, assistant director of the Roslin Institute near Edinburgh, birthplace of Dolly,1 the sheep that has become the living emblem of cloning technologies. UK policymakers already have settled the legality of using human embryonic material for science--allowing scientists to get on with their work. "I'm sure we are going to see a reverse brain drain," the Scottish scientist says.

Courtesy of The Roslin Institute

The Roslin Institute's Harry Griffin (above) predicts a reverse brain...

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