Any theory that the building collapsed from any kind of ground level explosion is proved wrong by the fact that it collapsed from the impact site.What is the difference between an old concept of an atomic demolition and that of a modern nuclear demolition? The main difference is that in an old atomic demolition with atmospheric nuclear explosion, while in a modern nuclear when buried deep underground, produces a typical deep underground nuclear explosion which has very different physical properties compare to an atmospheric nuclear blast.
https://en.wikipedia.org/wiki/User:Smallman12q/Nuclear_Demolition
Little is understood about nuclear devises by the common man other than its very destructive power when used for that perpose, yet we tend to forget that
some of our power plants are based on this concept. Btw the Cheapest form of power as well as Demolition, when in a controlled environment.
I think some of you should read up on nuclear energy and remove the negative part of its tremendous power which
can be put to good use. Enrico Fermi (Physicist) was the inventor of this power https://en.wikipedia.org/wiki/Enrico_Fermi. I won't go into details.
Einstein who was a visionary and believed in this energy, was worried about how it could be used, I won't go into details with that.
Titalian just blithering away with already refuted claims.