Abd Al-Hamid Umran: 20% is only the first stage, because a nuclear weapon requires…

Interviewer: The international inspectors will be oblivious to all this? Will this ploy work on the international inspectors?

Abd Al-Hamid Umran: You should look at the details. When the inspectors go to Iran, they stand in front of the centrifuge cascades, behind a chain barrier that the Iranians placed there. The Iranians say to them: “This is the output of that cascade.” When the inspectors say that they want to go in and see the actual connections, the Iranians don’t let them.Source.