Remember right after 9/11, the only civilian planes flying were contract planes flying Saudis back to their country, supposedly for their own safety? Well, "for their own safety" does not quite ring true, since I don't recall other Saudis nor Arabs being lynched by vengeful mobs.
Maybe there was another reason for spiriting them out so quickly. Inquiring minds want to know now, not in 20-30 years.
Never forget that the entire Royal family fled to Switzerland immediately after the 9-11 attack.
They feared we'd come after them.