Âé¶¹´«Ã½

Going critical

5 July 1997

Forty-four members of the US Congress, 43 of them Democrats, have urged
President Bill Clinton to cancel controversial experiments with plutonium that
stop just short of triggering a nuclear explosion. They say the “subcritical”
experiments (This Week, 7 June, p 7),
may provoke other countries to resume nuclear tests.

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