machiavelli, do you have any idea how long it takes to place explosives in a building that sizes to bring it down on itself. It takes days to prepare a building for implosive demolition. If you had attended fires you would know there could be sounds of explosions for many reasons even in forest fires the trees explode. When building that size fall they will make all kinds of noises including explosive sounds. I do not doubt those firefighters heard explosions but I do doubt the government made those building come down in any way.