So these tapes were so secret that they couldn't have been released 5 years ago? Give me a break! Yes some theories have it that it wasn't a plane but most would agree that planes were used, but were they actually hijacked by hijackers or were they taken control of by some other method is a question too. After all, out of those Hijackers that the news reported on most are still alive? - do a google search and you will see bbc reporting on that many of those supposedly in the planes were actually alive at different places and not in USA. Truth will never be known but 9/11 sure served it's purpose for US government. They should release the info who bought all those puts on the Airliners after all the government had to know something was fishy when the number of puts that were purchased were extremely out of ordinary.
I still believe it was a missile. Too many questions that are still unanswered. How does a plane of that size fly that low to the ground without all the objects (cars, trees, etc...) in the flight path not being blown everywhere or without powerlines or other objects damaging the plane. This site provides a pretty clear view of the first tape & it definitely doesnt look like a 757. If you review the history of plane crashes there's always wreckage. No wreckage here.