The U.S. and its three top European allies are divided over whether to confront Iran at the UN nuclear watchdog by seeking a resolution against it and thereby risk further escalation, with the Europeans in favor, diplomats say.
It is 18 months since the International Atomic Energy Agency's 35-nation Board of Governors last passed a resolution against Iran, ordering it to cooperate urgently with a years-long IAEA investigation into uranium particles found at three undeclared sites.