Mohammed bin Salman, (MBS) then newly appointed as crown prince, left, kisses the hand of Prince Mohammed bin Nayef at a royal palace in Mecca, Saudi Arabia in 2017. Mohammed bin Nayef has been accused of treason. File photo: AFPMohammed bin Salman, (MBS) then newly appointed as crown prince, left, kisses the hand of Prince Mohammed bin Nayef at a royal palace in Mecca, Saudi Arabia in 2017. Mohammed bin Nayef has been accused of treason. File photo: AFP Saudi Crown Prince Mohammed bin Salman’s swoop against potential royal challengers shows his concerns about his grip on power outweigh the...