So the tape in question was manufactured by the U.S. government with an actor playing bin Laden? Did they use the same sound stage that they used when they filmed the lunar landing in '69?
Why did they bother to mistranslate something they scripted in the first place? (No doubt this was all part of the all-encompassing conspiracy perfectly constructed to hide the fact that the tape was a fraud. Thank goodness you were perceptive enough to see through this.)
I just HATE it when the enemy deliberately prosecutes itself on film and then deliberately plants the damning evidence where it won't be accidentally bombed and can be conveniently 'found' by the 'other' guys.
Either the truth is stranger than fiction ... or we all live in Oz.