Reply #25: for reference: footage of normal controlled demolitions [View All]

[rman]

www.implosionworld.com/cinema.htm

Normal controlled demolitions do not produce a huge vertical plume of dust/smoke over the demolition site. Nor do they produce enormous amounts of dust rising from the area around the demo site (wrt rising dust, the collapses of WTC1, 2 and 7 looked as though much of Manhattan was on fire).
I very much doubt that a natural collapse would have such an appearance.