you really think I haven't seen videos of the towers collapsing??
just because the narrator shows a video of the towers collapsing and claims it was "controlled demo explosions" does not make it true
if the top 40 floor section of a 110 story skyscraper gives way due to damage from being hit by a 270,000 lb "missile" and subsequent fires the consequential pancaking down of the rest of the building should certainly be an explosive event... it looks just like it should look from such a catastrophic failure
you see what you want to see because of the narrator... do they also throw in some creepy sounding music?