Iranian Nuke Program May Have Advanced With Help From Russian Scientist, UN Says

PARIS -- International nuclear inspectors are investigating whether a Russian scientist helped Iran conduct complex experiments on how to detonate a nuclear weapon, according to European and American officials.

As part of the investigation, inspectors at the International Atomic Energy Agency are seeking information from the scientist, whom they believe acted on his own as an adviser on experiments described in a lengthy document obtained by the agency, the officials said. The officials, who spoke on condition of anonymity because of the investigation is underway, said that the document appeared authentic, without explaining why, but made clear that they did not think the scientist was working on behalf of the Russian government.

Still, it is the first time that the nuclear agency has suggested that Iran might have received help from a foreign weapons scientist in developing nuclear arms.

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