Molten metal is the fatal flaw
My little contribution to the theory on the 9-11 controlled demolition plan - the false-flag terror attacks on America - is that there was one key aspect which failed them, the planners. The blasts in the basement were designed to bring the rubble below the level of the water and the slurry walls were meant to give way giving rise to an incredible steam causing further havoc and rapidly cooling the molten metal caused by the hot thermite reaction, and thus, further destroying the evidence.