Saudi King Salman, left, speaks with his son Prince Mohammed bin Salman as they wait for Gulf Arab leaders ahead of the opening of a Gulf Cooperation Council summit, in Riyadh, Saudi Arabia. On Wednesday, April 29, 2015. (AP Photo/Hassan Ammar)

Saudi Arabia’s Soft Coup, Alarm Bells Should Be Ringing

The aggressive move elevating Mohammed bin Salman as the next in line to the Saudi throne should send warning signs to Washington and London over a prince who wages wars on a whim.