Saudi Crown Prince Salman appears to have weathered the storm over the murder of dissident journalist Jamal Khashoggi. The word is he owes his survival less to his father the king and more to the staunch support extended by Donald Trump. But diplomats who have served in Saudi Arabia draw parallels with the late Shah Reza Pahlavi of Iran. All it required were the magic words ‘game over’ from his staunch backers in Washington DC for the Shah to realise that he was finished. The Saudi crown prince, they say, needs to monitor his Washington friends more closely.