How many people do you think have heard about WTC7 collapse, and how many do you think even care?
This was a perfect moment to destroy any evidence, the whole country was in chaos, so what's the difference if one more building falls right?
Claiming that using 'shredder' would somehow be more logical, makes no sense, since the plane attacks, pentagon damage, flight 93, and building collapses causes such a shock that the PNAC boys could have gotten anything they wanted done at that moment. You know Lay is very close to the PNAC boys? Poor Lay...
And they did get everything they wanted right, thanks to people like Gravy, and you, no?