“Arab mediators working on a deal with Iran to reopen the Strait of Hormuz said they fear the country’s diplomats, who are under pressure from hard-liners in Tehran, lack the clout to guarantee compliance even if an agreement is reached,” the Wall Street Journal reports.“The concerns, based on a pattern of faltering diplomatic efforts and conversations with Iran’s negotiators, come as top Iranian representatives in the talks are increasingly under fire at home from hard-line officials and commentators who argue they are cutting deals that sell the country short.”