I don't usually post assertions that I can't substantiate but I feel very skeptical about this new video
supposedly released by Osama bin Laden. I'll quote my own comment at the ABC blogs page:
Osama has an adult son who married Zawahiri's daughter a few years ago. I suspect the son's voice is close enough to Osama's to pass voice analysis and that his is probably the one we've heard in recent years. Indeed, have we ever had a good voice sample to compare new recordings with? I can't substantiate that beyond a suspicion but it's interesting that as time goes by, the media-savvy al-Qaeda's recordings have grown progressively worse in quality.
I'll be glad to see any useful comments or contributions regarding this latest media event.
I guess it really is him, although he doesn't seem to be all there from his appearance and his chosen words. James Robbins at NRO
has further commentary.