I think mini-nukes had to be used to completely flatten/pulverize/disintegrate those massive structures... I am primarily unsure about how much steel was actually vaporized. Lots of outer wall sections and core columns just seem to have disappeared... but it's not clear to me how these could have been obliterated without the use of huge blinding bombs. And how did so much of the internal objects including floor slabs, get completely disintegrated?
Dec 13, 2012