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Nature 442, 18-21 (6 July 2006) | doi:10.1038/442018a; Published online 5 July 2006

Nuclear weapons: The next nuke

Geoff Brumfiel1

  1. Geoff Brumfiel is Nature's physical sciences correspondent in Washington DC.
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US nuclear weapons scientists are designing a warhead that is meant to be 'reliable' without ever having been tested. Geoff Brumfiel asks whether it could renew the United States' ageing stockpile.

It's a hot spring day in the Nevada desert, and retired technician Ernie Williams is showing tourists how nuclear bombs used to be tested. Williams is short and gruff and a veteran of the US weapons complex.

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