Despiteits early promise, researchinto liquid-fluoridethoriumreactorswas abandoned - the most likely reasonbeingthat thetechnology offered nopotentialforproducingnuclearweapons.
As for sanctions imposed by the UN Security Council, they have been even more limited to certain aspects of nucleartechnology and arms, with virtually no impact on the Iranian economy.
The agency, UN's top nuclear inspector said, had found no recent indications that Iran had been seeking enrichment technology abroad and was now checking if Iran had sought to manufacture such technology domestically.