Hatha, please don't confuse not believing in atomic demolition as buying into the "official" report. ...and you still haven't explained how the outside face of the towers would be able to contain the force of the blast all the way up through the building. If it were an atomic blast, the energy released would have burst out of the building at ground level....but it didn't do that. Rather, he's trying to say that the force of the blast traveled upward through 80 concrete floors which was somehow easier than bursting through the aluminum outer facade of the building.