As the Six Power group and Iran prepared for their third round of nuclear talks in Vienna next week (Tuesday-Wednesday, April 8-9) Tehran frankly admitted to exploiting the holes in the six-month interim deal they forged in Geneva last November. And Moscow looks like making good on its threat to back the Iranian case, in retaliation for Western penalties for its annexation of Crimea. In a closed meeting in Tehran Wednesday, April 3, Ali Akbar Salehi, head of Iran’s Nuclear Energy Commission said: “We have 19,000 centrifuges of which 9,000 are in operation [for enriching uranium]. Our advice is not to discuss the number of centrifuges, rather to discuss the unit’s isolation power.” He explained there are different types of centrifuge. More