An Iranian opposition group says it has new evidence that Iran is producing enriched uranium at a covert Defense Ministry facility in Tehran that has not been disclosed to United Nations inspectors.

The group, the National Council for Resistance in Iran, is planning to announce its finding in Paris on Wednesday. The group says that inspection of the site would demonstrate that Iran is secretly trying to produce nuclear weapons even while promising to freeze a critical part of its declared nuclear program, which it maintains is intended purely for civilian purposes.

The group, based in Paris, is the political arm of the People's Mujahedeen, which is listed by the United States government as a terrorist organization because of its involvement in attacks on Americans in the 1970's. But the group also has a successful track record in gathering intelligence on Iran, and was the first, in 2002, to disclose the existence of what was then the secret Iranian nuclear site at Natanz.

This is all so familiar, isn't it? But where the INC was lying, the NCRI [the political arm of the People's Mujaheden/Mujahedeen-e-Khalq/MEK] could be telling the truth -- or not. More background here and here.