Will secret technology help rogue nations get nuclear weapons?
New technology uses lasers to enrich uranium for nuclear power. Critics say it's approval would hamper nuclear weapons nonproliferation goals.
Inside a nondescript warehouse outside Wilmington, N.C., a secret technology that uses powerful lasers to enrich uranium is advancing toward commercialization. It would be a breakthrough that would cut by half the cost of making reactor fuel for nuclear power plants.Skip to next paragraph
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"This laser technology would make [uranium] enrichment efforts much harder to detect," says Leonor Tomero, former director of nuclear nonproliferation at the Center for Arms Control and Non-Proliferation in Washington.
Keeping nations from secretly enriching uranium is a cornerstone of US nuclear security. President Obama has tried to block Iran from such clandestine enrichment, and his administration this month has been at the United Nations arguing for a tougher Nuclear Non-Proliferation Treaty, the 40-year-old pact aimed at halting the spread of nuclear weapons.
The Obama administration has seen the UN meeting, which concludes in New York City Friday, as an opportunity to bolster the treaty by hammering nuclear cheaters and keeping closer tabs on nuclear fuel supplies. But the laser-enrichment technology may damage the US case in the eyes of other nations.
"By showing the world we have a better way of enriching uranium, it becomes very hard for the US to say later, 'Hey, we're doing it, but you should not be doing it,' " says Ms. Tomero, who now works for a congressional committee.
Apart from hints in a handful of documents, most details of Separation of Isotopes by Laser Excitation (SILEX) technology are classified under the Atomic Energy Act. That gives SILEX the same level of secrecy accorded US nuclear weapons.
Based on what is available in public documents, two dozen scientists and nuclear security experts warned in a letter to the Senate Foreign Relations Committee in October that SILEX "poses significant proliferation risks due to difficulties in detecting facilities using this technology."