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)

Prince Mohammed Bin Salman: Naive, Arrogant Saudi Prince Is playing With Fire

A German intelligence memo shows the threat from the kingdom’s headstrong defence minister.