Untitled there are 100's of reasons why people think it was an "inside job" why don't you pick one and then we will discuss it.
The passport of the terrorist surviving is a bit odd, when half the building and plane didn't survive.
Not to mention how the terrorists were CIA assets.
WTC7 also fell, yet no plane. The twin towers seemed to be detonated... come on now surely you must have heard of some of the reasons especially as you're so certain it was not an inside job this means you have heard the reasons why it could have been and have been able to debunk them