For those who are troubled about the relationship with the Saudis, I am going to post a link to an excellent essay that explains things quite coherently. Please take the time to read it. It is not full of four-dollar words, but explains in a logical way what is going on. I would have posted it except that it has a couple of F-words in it (WARNING) and I felt it would be against posting rules.
Mr. Mulliner on the "America the Right Way" thread (General Interest forum) found it, and it is quite helpful.
Please do read it if you have time:
A Bucket of Cold Water