TILLERSON HOPEFUL IRAN WILL NEGOTIATE CHANGES IN NUCLEAR DEAL Created: 21 September 2017 Iran United States Syria U.S. Secretary of State Rex Tillerson said he is still hopeful that Iran will agree to negotiate changes sought by the United States in the 2015 nuclear deal, despite the Iranian president's rejection of new talks.In a news conference late on September 20 after meeting with other parties to the agreement at the United Nations, Tillerson for a second time singled out the deal's "sunset" clauses, which end restrictions on Iranian nuclear activities, such as uranium enrichment, after 10 years in 2025. The restrictions were imposed in exchange for sanctions relief. The press conference took place after a meeting on Wednesday at the United Nations among the original negotiators of the nuclear deal. Rex Tillerson and Iranian Foreign Minister Javad Zarif spoke directly during the talks, in what a European diplomat described as a "very difficult" meetin...