Jeez, why would a building with multi-floor fires have smoke coming out of it?<quoted text>Actually there's plenty of evidence for explosives. Demolition light flashes are visible before and during the collapse of both towers. Separate pockets of smoke are visible coming out of both towers as they're collapsing. These pockets of smoke are actually exiting the buildings below where the collapse is occurring. Also, explain something to me. If there were no explosives in those buildings, and only the floors impacted by the airplanes were on fire, why is there smoke coming out of the buildings as they are falling? If it was only a collapsing buildings, you would have no smoke coming out of the buildings.
HVAC, how the hell does it work!