[american spirit]

...and once again, step up to the plate big boy.

[Texasforever]

I don't know why you are still here but your rediculous assertion that the steel had to melt in order for the towers to collapse shows your utter ignorance of the subject. All it took was the initial impact and resultant fire burning hot enough to start a molecular weakening of the steel. The combination of thousands of gallons of jet fuel the billows effect of the wind at that altitude and it was an instontaneous blast furnace reaching temps of 2000 deg fahrenheit. Now go play on DU. They have an entire forum filled with nutcases like you.