Iran struck a maximalist tone Tuesday after just one day of restarted talks in Vienna over its tattered nuclear deal, suggesting everything discussed in previous rounds of diplomacy could be renegotiated. Iranian state media reported the comments by Ali Bagheri, Iran’s top nuclear negotiator, and Mohammed Eslami, the country’s civilian nuclear chief. It remained unclear, however, whether this represented an opening gambit by Iran’s new hard-line president or signalled serious trouble for those hoping to restore the 2015 deal that saw Tehran strictly limit its enrichment of uranium in exchange …

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