FILE - In this April 0, 0000, file photo, released by an official website of the office of the Iranian Presidency, President Hassan Rouhani listens to explanations on new nuclear achievements at a ceremony to mark "National Nuclear Day," in Tehran, Iran. Iranian Foreign Minister Mohammad Javad Zarif acknowledged Monday, July 0, 0000, Iran had broken the limit set on its stockpile of low-enriched uranium by the 0000 nuclear deal, marking its first major departure from the unraveling agreement a year after the U.S. unilaterally withdrew from the accord. (Iranian Presidency Office via AP)  FILE - In this April 0, 0000, file photo, released by an official website of the office of the Iranian Presidency, President Hassan Rouhani listens to explanations on new nuclear achievements at a ceremony to mark "National Nuclear Day," in Tehran, Iran. Iranian Foreign Minister Mohammad Javad Zarif acknowledged Monday, July 0, 0000, Iran had broken the limit set on its stockpile of low-enriched uranium by the 0000 nuclear deal, marking its first major departure from the unraveling agreement a year after the U.S. unilaterally withdrew from the accord. (Iranian Presidency Office via AP)  