I was posted to this forum that the south tower swayed by aprox 10 ft upon impact of "FLT175" the ONLY way that could be accomplished, would be for the KE of the entire aircraft to be brought to bear, and with that, the whole aircraft is involved and would experience the shock of hitting the tower. you can NOT have your cake and eat it! again - people attempt to explain away the phenomenon by incredulity over the speed, however in the case of the alleged "FLT175" the whole event that is airliner going nose to tail penetrating a wall, took about 210 milliseconds, and the time between the nose contacting the wall and the wings having the opportunity to touch the wall, would be aprox 70 milliseconds, there was PLENTY of time for physical materials, that is the aircraft, to react to forces applied. BTW: Hoosier, Fangbeer, how many years have you been at this? and why have you made no progress at all in your thinking?