I haven't had chance to look at the videos in the OP, but there are always going to be people that say that the government would never do such a thing.
In regards to the passengers fighting back, is there actually any proof that this happened? I'm just wondering that if no proof can be found (I haven't had a look for any as I'm currently at work), then how can people say the passengers fought back?
Not sure about building 7, whether if the building contained the radio controllers for the planes, or if it contained the controllers to detonate the towers, but you might want to check out my thread regarding this matter.
Who was behind 911?