The Salter Footage Smoking Gun

I see other people are picking up on it, though I believe I was the first to calculate that there should have been a plane in the early wide shots.

Keep in mind, officially, UA175 was coming from the southwest or even west before it turned north towards the WTC. Thus, it is clear, the plane SHOULD HAVE BEEN VERY VISIBLE in the early wide shots.

But nothing is there.