What actually caused the collapse of the Twin Towers in Manhattan on September 11, 2001?
DON PAUL: To tell the truth, I’m not sure. My book states: “Neither jet fuel’s fire nor anything else that was in the Towers that morning burns hot enough (1022 degrees Fahrenheit)…to deform steel.” And that: “to not topple sideways, but to instead fall straight-down within their foundations, the 110-story Towers had to be imploded by explosives set off against their load-bearing columns and beams.” I remain sure of those statements. I’m also sure that the Twin Tower’s central columns must have been severed at their bases, 7 stories underground, by explosives comparable to nuclear devices. The largest seismic spikes that Columbia University’s Laboratory record on the 9/11/01 morning, 2.3 and 2.1 on the Richter scale, came within the first five seconds of each Tower’s fall, not at the moment of the collapses’ impact with ground. Also, temperatures 7 stories underground of the Towers’ sites remained above 2000 degrees F. three weeks after 9/11/01, suggesting that something very hot and
