Osama dead?

TBA has always been suspicious of wishful thinking that Osama bin Laden has managed to die unassisted by the U.S. military. But his latest alleged audiotape is not persuading many people that it's really his voice. Juan Cole analyzes the content and finds it unconvincing, and concludes:

I don't know if the old monster is dead, and some clever young engineers just have a program to emulate his voice, or whether he is alive and horribly disfigured (we have not seen him in an authentic video since October 2004). But I do have the severest doubts that he issued this audio message. And the interesting thing is that even if he did, almost no one in the Muslim world seems to care.

Marc Lynch, however, takes it at face value.