I suspect it's valid, but so what?
One whacko, living in a cage, sends a letter to another whacko, living in a cage, ranting about his psychotic visions and pipe-dreams.
To say that this is what the US is fighting to prevent is just plain silly. That implies that
without the US invading Iraq, killing thousands of people, spending billions of dollars, this would come to pass.
It wouldn't.
Also, I thought the US was fighting to destroy WMDs?
Mr Mephisto