The Saudis deserve to be shut down. They are a criminal enterprise. What is it that attracts American politicians to them? Philosophy? Religion? Their anti Zionist calls?Their friendliness? or money? Well if you don't pick the last one, you need to go back to the nursery. You are not ready for prime time.
The Saudis buy American political influence. They pay off politicians to rig the oil market for OPEC. Here they convince politicians to vote against home production of gas and oil. They drop their funds into foreign banks out of the reach of American regulators. Or, they pay retired politicians outrages fees for useless speeches (Clinton).
The Saudis are corrupting the American political system in a classic gangster style. so forget about 911. Take out the Saudis for the gangsters they are.
Who or what do you imagine replacing the house of Saud in Arabia?