1. There is apparently enough evidence to bring on board Pakistan, Iran, and Syria; nations that are partners in crime with this thug. They apparently see him as the number one suspect, and they want to not be in the way of a pissed off superpower.
2. Do you recall "loose lips" Orrin Hatch, with the intercepted transmission from Bin Laden's henchmen?
3. Do you remember the Cole, the embassies in Africa, the original WTC bombing?
4. And most importantly, I don't give a damn if you are convinced or not. Whether or not we compile enough evidence to "convict" Bin Laden is immaterial. He is guilty of enough evil that it is high time that he be destroyed.