Reply #132: you wouldn't need tons and tons of explosives

[petgoat]

If the zipper/pancake theory is correct, you need only blow one floor
truss loose from the exterior column and that tears loose the next and
the next and the next, and the tumbling floor tumbles the next and
the tower comes tumbling down.

Who needs explosives? If that theory is correct, a guy with a crowbar
could have brought the towers down!

Of course, NIST's failure to endorse the pancake and zipper theories
pretty well shoots holes in it IMHO.