I am not surprise if anyone did hear explosions after all with a fire that intense I am sure that struture damage would be loud never mind various things that could combust from the extreme heat. Hey common house fires have explosions from things combusting, would that mean Bush planted bombs in those common house fires as well? The bomb thing is either stupid reasoning from people who do not understand phases of matter from middle school science or just people lying for their own agendas.
The first arab attack on the Twin Towers was in the gararge and was car bombs, a typical muslim mideastern style attack. I might state that some are confusing their facts but they would most likely state that the first attack never happened as well.
No Andy there was a huge explosion on the lower floors well before the towers fell. Watch the video there is mucho eyewitness testimony from WTC workers, firefighters and police on this. There is video footage in , it shows the huge slabs of marble blown off of the lobbywalls soon after the lobby explosion before the building fell. watch the video.