Osama bin Elvis (2009)

Nor does the tapes' Osama sound like Osama. In 2007 Switzerland's Dalle Molle Institute for Artificial Intelligence, which does computer voice recognition for bank security, compared the voices on 15 undisputed recordings of Osama with the voices on 15 subsequent ones attributed to Osama, to which they added two by native Arab speakers who had trained to imitate him and were reading his writings. All of the purported Osama recordings (with one falling into a gray area) differed clearly from one another as well as from the genuine ones. By contrast, the CIA found all the recordings authentic. It is hard to imagine what methodology might support this conclusion.

Also in 2007, Professor Bruce Lawrence, who heads Duke University's religious studies program, argued in a book on Osama's messages that their increasingly secular language is inconsistent with Osama's Wahhabism. Lawrence noted as well that the Osama figure in the December 2001 video, which many have taken as his assumption of responsibility for 9/11, wears golden rings—decidedly un-Wahhabi. He also writes with the wrong hand. Lawrence concluded that the messages are fakes, and not very good ones. The CIA has judged them all good.

New Osama, Real Osama

We do not know what happened to Osama. But whatever happened, the original one, the guy who looked and sounded like a spoiled Saudi kid turned ideologue, is no more. The one who exists in the tapes is different: he is the world's terror master, endowed with inexplicable influence. In short, whoever is making the post-November 2001 Osama tapes is pretending to far greater power than Osama ever claimed, much less exercised.

http://spectator.org/archives/2009/03/13/osama-bin-elvis