North Korea science news: nuclear uranium enrichment facility causes intl. fear

North Korea has secretly and quickly built a new facility to enrich uranium, according to an American nuclear scientist, raising fears that the North is ramping up its nuclear program despite international pressure.

The scientist, Siegfried Hecker, said in a report posted Saturday that he was taken during a recent trip to the North's main Yongbyon atomic complex to a facility with a small industrial-scale uranium enrichment facility. The facility had 2,000 recently completed centrifuges, he said, and the North told him it was producing low-enriched uranium meant for a new reactor.

Hecker wrote that his first glimpse of the centrifuges was "stunning."

"Instead of seeing a few small cascades of centrifuges, which I believed to exist in North Korea, we saw a modern, clean centrifuge plant of more than a thousand centrifuges all neatly aligned and plumbed below us," Hecker wrote.

He described the control room as "astonishingly modern," writing that, unlike other North Korean facilities, it "would fit into any modern American processing facility."

The facilities appeared to be primarily for civilian nuclear power, not for North Korea's nuclear arsenal, said Hecker, former director of the U.S. Los Alamos Nuclear Laboratory and a regular visitor to the North. He said he saw no evidence of plutonium production. But, he said, the facilities "could be readily converted to produce highly enriched uranium bomb fuel."

Uranium enrichment would give the North a second way to make atomic bombs, in addition to its known plutonium-based program. Hecker's findings were first reported in The New York Times.

North Korea vowed in March to build a light-water reactor using its own nuclear fuel. Hecker, and Jack Pritchard, a former U.S. envoy for negotiations with North Korea, have said that construction has begun.

Light-water reactors are ostensibly for civilian energy purposes, but the power plant would give the North a reason to enrich uranium. At low levels, uranium can be used in power reactors, but at higher levels it can be used in nuclear bombs.

Enriched uranium would provide the North with an easier way to build nuclear bombs compared to reprocessing plutonium. Uranium also can be enriched in relatively inconspicuous factories that are better able to evade spy satellite detection, according to U.S. and South Korean experts.

Source:  AssociatedPress

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