Your statement is inane, foolstroupe. I'm a welder, among other things, so I've worked with metal too. No way an hour's worth of dispersed, burning jet fuel triggered such a reaction. The massive amounts of steel in the WTC towers were huge heat sinks. The steel absorbs heat (even the heat of an oxy-acetylene torch flame), and that heat is dissipated outwards. The thicker the steel, the deeper the heat sink. So, an hour's worth of unfocused heat on 3-4 inch thick steel columns ten feet around (47 columns in each building), would do NOTHING to affect the steel.

You are shown Kennedy being shot from the front while the narrator says "Then Oswald's final bullet finishes the job." You are shown controlled demolitions while the narrator says "Then the heat of the fires triggered the collapse."

Nothing but incendiary devices could have caused the pools of molten steel still in evidence weeks later.