The Trillion Dollar Conspiracy 9 11 Documentaries HD 2015
Sounds like according to these people in this video, dynomite may likely also have been involved inside the Towers. That means people got inside the towers and set this up if true.
I think our government doesn't want to tell us everything. I think this was a big mistake that got away from them. They don't want to panick the people, so dont want to give all the details.