Secretary of State Antony Blinken on Friday warned Iran that the United States could eventually give up on rejoining a nuclear deal if talks in Vienna drag on. "There will come a point, yes, where it will be very hard to return back to the standards set by the JCPOA," Blinken told reporters in Paris, referring to the 2015 nuclear accord from which former US president Donald Trump withdrew in 2018. sct/sjw/tgb