Iran stonewalling N-weapon probe: IAEA

8220;We8217;ve arrived at a gridlock,8221; said a senior UN official, describing the document as 8220;a progress report without progress.8221; He demanded anonymity because he was not authorized to discuss the restricted report.

The document also said that through uranium enrichment Tehran now has amassed a third of the amount of enriched uranium it would need to reprocess into the material serving as the fissile core of a nuclear weapon, should it choose to do so.

The US and its allies say Iran wants to develop its enrichment program for its weapons applications. But Tehran insists it seeks the technology only to create nuclear fuel, and IAEA oversight and inspections of the Islamic Republic8217;s known enrichment program has not come up with any evidence that contradict what Tehran says.

The six-page report confirmed that Iran continues to expand its uranium enrichment program in defiance of three sets of UN Security Council sanctions imposed in attempts to force Tehran to mothball such activities.

The document said Iran was now either fully or partially operating nearly 4,000 centrifuges at its cavernous underground facility at Natanz.