Funny isn't it how we always hear audio but never video? Personally (and I have to add, this is my own opinion outside of uniform and not representing the U.S. Army) I think he's worm food. This is a guy who views himself as a modern day Saladin who wants to unite the various elements of Islam under his green banner and conquer the world He wouldn't go for audio only. The funny thing is he never bargained for the strength of capitalism, the internet, and the fact that people have changed a lot since the age of enlightenment. Even post 9-11 he went out of his way to do video. Then after the Tora Bora campaign, nothing but bland audio. Pack enough explosives into a cave and you have to ask, "was it live, or was it semtex?"
It wouldn't be entirely beyond the pale to believe that the government doesn't want to admit the death of its War on Terror poster boy, especially considering the 30 minute (including commercials) attention span of many Americans. The opposite side of the coin (i.e. he is alive) would throw an omelette into the face of Rumsfeld et.al should he prove to be alive. Besides, martyrdom is only a headshot away.
I guess the bottom line is how effective is he at this point? The majority of Al-Qaeda operations have been limited to the regional level. If we can maintain the pressure upon the S-3 element (Operations and Training) of the organization, so that the majority of actions are disjointed stings rather than the concerted attacks of the past, we are making progress.
Just my half pence,
andy