after 9/11 the monster turned against its homeland. mounting a deadly offensive inside the kingdom. the house of saud mounted a vicious counterattack. >> they began systematically to find and go after al qaeda cells in the kingdom. >> mohammed bil salman. but the ideology of wahhabism is still alive across the world. when isis established its schools, the textbooks that it first used came from saudi arabia. >> the narrative that you have to behead and kill anyone who doesn't believe in what you believe, the narrative you have to blow up mosques, the narrative that anyone who's not a muslim does not have any rights, not even the right to