Madawi Al-Rasheed, a visiting professor at the London School of Economics and Political Science, talks about Mohammad bin Salman, also known as "MBS" -- the brash, young Saudi Crown Prince who consolidated an enormous amount of power in recent weeks by detaining over a dozen of his royal rivals and other senior Saudi officials. Al-Rasheed will help us understand not only what's going on within the kingdom, but also the larger regional context of MBS' dangerous power play.