Professor Steven E. Jones writes:

"...On the other hand, falling buildings (absent explosives) have insufficient directed energy to result in melting of large quantities of metal. The government reports admit that the building fires were insufficient to melt steel beams — then where did the molten metal come from?"

http://www.physics911.net/stevenjones

So the government's own reports admit that there was not enough heat to melt steel and cause foolstroupe's "exothermic reaction."

Another problem with the "heat caused the collapses" theory is that the second building struck fell first. And the strike was a glancing blow. Why did both buildings fall in EXACTLY the same way, and why did the one the burned the shortest period of time fall first? Hammer that one out, foolstroupe.