Some of what you just posted is simply not so backontrack. For example does Kevin Ryan actually even exist ? How do you know ?
The only possible conspiracy in any of this MIGHT be some shoddy construction work and/or the use of low quality steel but even that is unlikely in such a prestigious building. The mechanics of what happened has been fully and clearly detailed by many experts in the field. The only mysteries are those created by conspiracy theorists using fake evidence especially regarding the pentagon hit. These same people claim man never walked on the moon either by using fake video etc which showed flags waving in the wind lol.
And finally as another poster said do you really believe that the US could pull off a stunt like that in secret without a leak ?