Saudi prince, Macron hail warming ties, but differences lurk

Saudi Arabia's crown prince and French President Emmanuel Macron hailed warming ties Tuesday and agreed on the need to curb Tehran's "expansionism" in the Middle East, but conceded differences over the key issue of the Iranian nuclear deal.Prince Mohammed bin Salman also joined Macron in taking a tough line over the weekend's alleged chemical attack in Syria, as the de facto Saudi leader wrapped up a three-day visit to Paris with a gala dinner at the Elysee Palace.The prince's first visit to Fra