There are plenty of unanswered questions surrounding this event.
How did the steel melt at such a low temperature?
How did a building designed to withstand a hit from a much larger plane come down at free fall speeds?
Why did firefighters hear explosions below them when they were entering the building to save lives?
How did building #3 fall?
Why was the only piece left from the plane was a paper passport that fell directly on the ground by the building?
Why was NORAD told these planes veering off course were for a training exercise? Their fighter jets are ready to accost any plane that come off flight plan.
Any many more
You are absolutely right, and there are many more questions.
I am totally flabbergasted that so many people swallow the official BS hook line and sinker. In my little ?! series I want to throw one absurdity out there at a time, to give people just enough to question without -God forbid- having to think too much. If just one person goes "that doesn't make sense!" or has just a little shadow of a doubt, I'll be a happy camper. Sometimes all it takes is a tiny little tear in the fabric of their belief, and the whole thing unravels, one strand at a time.