On June 21, Saudi King Salman appointed his 31-year-old son Mohammed bin Salman as crown prince, replacing the king's nephew, Mohammed bin Nayef, as first in line to the throne. The elevation of Mohammed bin Salman to crown prince of Saudi Arabia is a calculated risk with potentially enormous consequences for the kingdom, writes Kristian Coates Ulrichsen in a post for The Washington Post Monkey Cage Blog: http://wapo.st/2rVRXev.
