They haven't proved that. Why should we believe a socialist German TV show and its Saudi translator? If anything, they are the ones who are being manipulative. Their hairsplitting over a couple of words doesn't change the fact that Bin Laden's terrorists committed the heinous crime of September 11!
Excuse me for intruding on a private conversation, but let me ask you, did you, or did you not believe that Bin Laden was guilty prior to seeing the video that was admittedly edited by the socialist government of the United States and its hired translators?
Sorry, I don't mean to split hairs too, but since you brought it up, even the hair on his beard doesn't match up (based on other available photos).