Apparently pakistan severed ties with Iran as well? Thats sort of big/unexpected.
As for saudi arabia, well depending on how you view the world, its either the smartest thing the west has ever done or the worst.
If you were to look at it in a very selfish greedy viewpoint, its been a great alliance for the United states. Sucks for the rest of us though. In the grand scheme of things, 911 is a detail ( as rude as that sounds)