None of you are "being practical" if you are arguing whether or not these guys understand the pros and cons of a Civilized International agreement from the 20th Century if we all know that these ragheads still eat, drink and sleep in the 13th Century.
NO, the Geneva convention does not apply to Al Qaeda!
-AND-
NO, the ragheads DO NOT CARE one way or the other! They will not treat our prisoners any better or any worse since we have no proof that they are even RATIONAL, much less CIVILIZED.
I think that my rabid dog analogy in Post #118 is what you can practically expect from these organisms.
I would not expect a rabid dog not to bite if given the chance. Likewise, I do not expect Al Qaeda to refrain from killing an "American infidel" whenever they have the chance.