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Nature 448, 741 (16 August 2007) | doi:10.1038/448741a; Published online 15 August 2007

Powerful incentives

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Can an expanded loan guarantee programme dispel US power companies' hesitation about resuming construction of nuclear power plants? Geoff Brumfiel investigates.

To an outside visitor, America's nuclear power plants look distinctly dated. Operators watch their reactors' progress on racks of indicator lights and run them in part by using old-fashioned relay switches.