Iran insists on retaining its enriched uranium stockpile as a red line, while the Trump administration reportedly seeks its removal or destruction.
https://www.foxnews.com/politics/how-does-trump-solve-key-nuclear-dust-hang-up-negotiations-end-iran-war
https://www.foxnews.com/politics/how-does-trump-solve-key-nuclear-dust-hang-up-negotiations-end-iran-war