The Saudi terrorists left SA as medical students and then left Germany full blown Islamic radicals.
If you know anything about the Saudis, you know the Royal family has been hugely pro-American since before Reagan. The population includes lots of looney Islamic radicals. As many people who have studied the area know and have written about, bin Laden and his group hate the Saudi Royal family as much or more than they hate us. There has been a price on bin Laden's head there for ten years. Likewise Egypt.
His main biographer said on FOX that bin Laden picked Saudis and Egyptians to carry out 9/11 in order to turn us against our allies and his main enemies. He's done it before.
You're just spewing crap you've heard that supports your own ignorance. If you really cared, you could educate yourself.