Not disagreeing that a missile hit the pentagon but where are the people that were on the plane is said to have hit the pentagon. Barbara Olson was one.
I don’t offer this as proof, but it’s food for thought. I visited DC in 2009 and stood on a small embankment above the Pentagon so I could see where it was hit. The repairs had been done to the building by that time and the new cement that was used for the repair hadn’t discoloured sufficiently yet to match the rest of the building. You could clearly see the outline of the wings of a plane at the reported entry point. It was a bit spooky.