I really don't understand the problem here.
Forget the tin foil hat guys and the hangers on, look at the professionals who raise serious questions about the official story and look at the rather obvious evidence we see in the public domain.
The easiest is the damage to the pentagon before the collapse.
A large object doesn't leave a small hole. You don't need a degree in astrophysics to work that one out.
Given that simple inconsistency, you have to question the rest of the official story.
When you do, you find even more holes; all plugged with answers that don't fit.
I think given that simple inconsistency, one needs to further one's education - it isn't a forgone conclusion that 'a large object doesn't leave a small hole' when there are different speeds & materials involved.
I am not a materials scientist or physicist - but the ones I know didn't find that hole size a problem. Sometimes the truth is counterintuitive.
Edited to add:
From this thread's samples, there are very very few participating in the discussion who do NOT have some other agenda going. So I would hesitate to suppose there may even be another poster with professional qualifications asking serious questions.