US threatens action against Iran at IAEA over continued 'stonewalling'

US threatens action against Iran at IAEA over continued 'stonewalling': The United States on Thursday threatened future action against Iran at the U.N. nuclear watchdog if Tehran keeps "stonewalling" the watchdog by denying it the cooperation and answers it seeks on issues including long-unexplained uranium traces. At a quarterly meeting of the International Atomic Energy Agency's 35-nation Board of Governors, Washington again told Iran to cooperate with IAEA inspectors who for years have been seeking explanations from Tehran on the origin of uranium particles at undeclared sites. The United States has stopped short, for now, of seeking a resolution against Iran, however.