FILE-- This Nov. 19, 2015 file photo shows a general view of a petrochemical complex in the South Pars gas field in Asaluyeh, Iran, on the northern coast of Persian Gulf. When it comes to saving Iran's nuclear deal, Europe finds itself in the impossible situation of trying to salvage an accord unraveling because of the maximalist U.S. sanctions campaign. (AP Photo/Ebrahim Noroozi, File)
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