The capture of Bin Laden?
It is actually very difficult in my opinion to see that it would realistically achieve anything. This is not to say I would not gladly see this guy put on trial for his crimes but in doing so it could actually make matters worse. If,for example the US were to bring him to trial, it would simply been seen as his supporters as a show trial, further repression of the Islamic faith. It could actually drive people to further swell the ranks of Al Qaeda. Heaven only know what the reaction would be if he was capture, tried and sentenced.
An international tribunal is an option, but where? Who would do it and under what authority? This could again open up a whole can of worms, clearly countries like the US would have high stakes in such a trial and the punishment, if convicted would be what? The death penalty? Life in prison?
I really do see any form of trial against UBL, if he was ever captured simply being disastrous, simply because he would be martyred, it would be seen as percussion and could ultimately lead to further acts of terrorism.
I have a sneaky suspicion that the capture of UBL is not really an option, I equally have a sneaky suspicion that a bullet in the head or a bomb from above is the preferred option, but either way it could lead to further escalation of global terrorism.