One of Iran's top nuclear negotiators, Hossein Moussavian, said today his country's decision to resume some of its nuclear development program is quote "irreversible." Moussavian said his country would continue that program even if it faced being referred to the UN Security Council. He added that talks scheduled for next week between Iran and the foreign ministers of Britain, France and Germany might not happen. He said those talks would go ahead only if both sides reached a mutually acceptable basis for an agreement in the next few days. That contradicted comments from Iranian President Mohammad Khatami. Iran’s president said today the discussions planned for May 24 would proceed as planned. He added that Iran was still trying to find a suitable bilateral settlement but would not give in to any political pressure from quote "our European friends."