Climate Changed

Bomb Watchers Twitching as Looser Rules Weighed for Uranium

Countries encouraged to look at extraction from phosphates, providing potential new pathways to the nuclear material used in reactors and weapons

Uranium concentrate, commonly known as U3O8 or yellowcake, sits in the Uvanas processing facility near the East Mynkuduk uranium deposit in Kyzemshek, Kazakhstan, on Thursday, Oct. 18, 2007. Yellowcake is the end-product of the in-situ leaching process employed in the nearby East Mynkuduk uranium mine.Photographer: DANIEL ACKER
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Back in the 1970s and 1980s when he was keeping America’s nuclear weapons up to date, Robert Kelley didn’t pay much attention to their source of uranium.

But then he was reassigned to lead the international team that accounted for the of hundreds of tons of the heavy metal Iraq secretly extracted at a fertilizer factory to feed Saddam Hussein’s weapons program.