VIENNA — A senior US envoy accused Iran of ‘‘deception, defiance, and delay’’ on Wednesday in dealing with international concerns about its nuclear activities, reflecting frustration over Tehran’s expanding uranium enrichment program and stalled UN attempts to determine whether Tehran has worked secretly on atomic arms.
Joseph Macmanus, the chief US delegate to the International Atomic Energy Agency, also suggested the United States might push for tougher diplomatic action in coming months.
While not going into details, his comments indicated that America might lobby the IAEA board for a special inspection of Parchin, a facility that the agency suspects was used to test explosive triggers for a nuclear weapon, or that the United States would seek an IAEA resolution critical of Tehran.
International criticism of Iran has been relatively muted since last week’s nuclear talks in which Tehran showed interest in proposals made by the United States and five other world powers. By contrast, the comments by Macmanus were unusually hard edged, suggesting they were meant to signal that pressure on Iran would not diminish.