same story- AP feed

"One of the diplomats told The Associated Press that the samples came from equipment that can be used in uranium-enriching centrifuges at a former research center at Lavizan-Shian. The center is believed to have been the repository of equipment bought by the Iranian military that could be used in a nuclear weapons program.

The United States alleges Iran had conducted high-explosive tests that could have a bearing on developing nuclear weapons at the site.

The State Department said in 2004 that Lavizan's buildings had been dismantled and topsoil had been removed in attempts to hide nuclear weapons-related experiments. The agency subsequently confirmed that the site had been razed.

In an April 28 report to the U.N. Security Council and the IAEA's 35-nation board of governors, agency head Mohamed ElBaradei said the agency took samples from some of the equipment of the former Physics Research Center at Lavizan-Shian. The diplomat said the evaluation of those samples revealed the traces in question."


http://news.yahoo.com/s/ap/20060512/ap_on_re_mi_ea/nuclear_agency_iran_4;_ylt=Arf4K0OrkKT4Vz1VYtqbazxSw60A;_ylu=X3oDMTBiMW04NW9m