And exhibited none of the characteristics of destruction by fire, i.e....
2. Asymmetrical collapse which follows the path of
least resistance (laws of conservation of momentum would cause a falling, to
the side most damaged by the fires)
Kenny has argued:
"The south tower lurched to the side, but was arrested by the columns on the other side and the collapse of the floors below which made it go straight down."
From what I can see, the south tower didn't rectify itself- it simply disintegrated in mid air just like the rest of the tower:
You can't say -that- was pancaking, since it was the top portion.