House of Saud: A Family at War, review: an eye-opening documentary that lifted the lid on Saudi Arabia and terrorism

For a documentary exploring the challenges facing Saudi Arabia’s new ruler, 32-year-old Crown Prince Mohammed bin Salman, House of Saud: A Family at War (BBC Two) had an unexpected starting point: a village in the mountains of Bosnia, where a tattered black flag of jihad fluttered in the snowbound landscape. It instantly brought into focus the idea that for any understanding of Saudi Arabia’s place in the world today, one cannot avoid its tangled relationship with Islamic extremism.