VIDEO EVIDENCE: The South Tower Collapse

This famous video is perhaps the closest known angle to the collapse of the south tower. The person who filmed this is very lucky to be alive. A few things to notice: and :06 you can see one of the infamous "squibs" about five to ten floors below the main collapse. Is it air being compressed outward by the collapsing floors? Or is it evidence of explosions from a controlled demolition? At :11 the cameraman looks back at the collapsing tower after starting to run and you get an excellent, albeit brief, look at the first debris hitting the ground. It is obvious at least half the tower is left at this point which is about 10 seconds after the collapse began. Those that claimed the tower collapse in 9 seconds (or "free fall" speed) can't have watched this angle too many times, as it obviously takes almost double that amount of time.