I like Joseph P Farrell's theory that there were at least 3 separate groups acting independently. This is my own take on it:
Group 1 planted the bombs and orchestrated the fake plane impacts with the media. That's the deep state consisting of all the usual suspects going back to the towers being constructed with the intention of destroying them.
Group 2 is the subgroup of the Nazis who are separate but related to the deep state, they control a lot of the scientific advances especially in nuclear tech and weaponry. they planted the mini nukes to demonstrate their superiority to the deep state.
The third group used the DEW tech from a space platform, these are the true controllers of our realm, possibly aligned with ET's and probably considering themselves a breakaway civilization so far advanced that they usually don't act in such dramatic fashion but they just couldn't resist the opportunity to display their utter superiority and dominance in this event in such a way that only the other two groups would immediately understand.