If it wasn't the plane, how do you explain the DNA and dentist records of the passengers recovered? Maybe they pulled out jaws and cut body parts on the plane AFTER they entered the plane, then placed all parts into a missile - in the air - and striked it on Pentagon - without ANYONE witness an incoming missile.... OMG, what a massacre and what a trick!
And not to mention, it had to be convincing, because the two planes striking WTC was not enough to make people believe, so they also "planted" part of the plane in -and outside Pentagon and destroyed several lamp poles on the incoming route, without anyone noticing it live on all worlds news-stations