Pakistani mediators spent weeks juggling late-night calls and competing drafts before a Qatari push helped secure this week's preliminary U.S.-Iran deal, but turning it into a permanent agreement will prove harder, sources said.
The two sides now have 60 days of negotiations to reach a final settlement that covers complex subjects including Iran's nuclear programme. Four Pakistani sources familiar with the talks said that just to get to the interim deal, they hit countless roadblocks that often shifted within days, ranging from proposed tolls in the Strait of Hormuz to the war in Lebanon.
