A senior Iranian nuclear official Hossein Moussavian said Tuesday that the issue of the 20 centrifuges will top the agenda of the next round of Iran-EU 3 talks. "Suspension (of uranium enrichment) was a political issue and was agreed in a political framework. It is natural that the quality of the centrifuges-related activities will be cleared in talks with the European side," added Moussavian who is the Chairman of the Foreign Policy Committee of the Supreme National Security Council, according to <i>IRNA</I>.