VIENNA (Reuters) - Iran has improved its cooperation with the U.N. nuclear watchdog, the IAEA's acting chief said on Friday, as it presses for answers to questions it will not spell out but that diplomats say include how uranium traces were found at an undeclared site.
The International Atomic Energy Agency, which polices Iran's nuclear deal with major powers, told Tehran last month that "time is of the essence" in addressing what it describes in its jargon as concerns about the completeness of Iran's safeguards declarations to the agency.