Scientific tests have led American intelligence agencies and government scientists to conclude with near certainty that North Korea sold processed uranium to Libya, bolstering earlier indications that the reclusive state exported sensitive fuel for atomic weapons, according to officials with access to the intelligence. The determination, which has circulated among senior government officials in recent weeks, has touched off a hunt to determine if North Korea has also sold uranium to other countries, including Iran and Syria. So far, there is no evidence that such additional transactions took place.Nonetheless, the conclusion about Libya, which is contained in a classified briefing that has been described to The New York Times, could alter Washington's debate about the assessment of the North Korean nuclear threat. In the past, some administration officials have argued that there is time to find a diplomatic solution because there was no evidence that the government of Kim Jung Il was spreading its atomic technology abroad.
Nine months ago, international inspectors came up with the first evidence that the North may have provided Libya with nearly two tons of uranium hexaflouride, the material that can be fed into nuclear centrifuges and enriched into bomb fuel. Libya surrendered its huge cask of the highly toxic material to the United States when it dismantled its nuclear program last year. Now, intelligence officials say, extensive testing conducted at the Oak Ridge National Laboratory in Tennessee over the last several months has concluded that the material did not originate in Pakistan or other suspect countries, and one official said that "with a certainty of 90 percent or better, this stuff's from North Korea."