I thought all the windows faced inwards. Kind of hard to see a plane skim just above the ground, low enough to fly under power lines, impact the outside of the Pentagon with no window facing that direction. One would assume seeing a plane shaped a cruise missle would be quite memorable to leave a perfectly round hole with no wing impact evidence, fly below the powerline without clipping one wire and leave no debris. Then again if I saw a plane that did that I’d remember it too. That’s it story validated.