Raise your hand if you actually saw the 'offensive you tube video'.
I watched it, and it was so laughably low budget, It's hard to believe anyone with a brain would be offended by it. If the religious extremists in Benghazi were going to get all up in arms over a video, Bill Maher's "Religulous" would provide a great deal more offense to them. While Maher mainly went after Christian and Catholics, he was an equal opportunity critic in his 'documentary'. Perhaps they rioted over Sam Harris' "The end of Faith" an-anti religion book he wrote as an impassioned response to the events of 9-11. or God is not Great by Chris Hitchens, or "The God Delusion" by Richard Dawkins... any were better aimed attacks on Islam, and more offensive.