Actually the video doesnt really have to do with metal at all, and the metal arguments were not really present.

The gist was - the plane, aerodynamics, crash ballistics, the survielance footage (and lack thereof), Pentagon crash eyewitnesses, and the missing money.

I wouldnt have posted the video were it based on the twin towers heat/structural arguments.

For who could be free when every other man's humour might domineer over him? - John Locke (2nd Treatise, sect 57)