His 'Sleeping with the Devil' on the US-Saudi connection was pretty damning for its time too. No pun intended.

http://www.amazon.com/Sleeping-Devil-Washington-Saudi-Crude/...

I grew up in Saudi, and got my undergraduate degree in intelligence studies. From my perspective, Baer was quite in touch with modern politics. A bit bombastic, but always a seemingly strong understanding of the political landscape.

I just finished a rather excellent (if slightly depressing) book on the links between the US government and Saudi Arabia that suggests those links are rather deeper than you might suspect:

http://www.amazon.com/Sleeping-Devil-Washington-Saudi-Crude/...

[NB: From what I can tell the author, Bob Baer, is fairly credible - he is a former CIA field officer with a lot of experience in the Middle East.]