You will hardly be able to gain a better understanding of 9/11 and the various actors involved than the following video. I am pretty sure that everyone that watches it, even if you were involved personally, will learn something from it.
I strongly recommend watching it, and would appreciate an alternative link on another platform that won't delete it, because Youtool will. Watch it, download it, be able to link the information contained with ongoing operations, because they are continuations of policies that have been ongoing for more than a century, perhaps centuries.