Paul Richard wrote:

Are you saying that the neat demolition we saw of WTC7 could have been rigged in the few hours between the collapse of the Towers and late afternoon when it collapsed, or would it have taken considerably longer?

If you just want to blow hell out of a building, and know where to put the explosives, it doesn't take long at all.  Suppose that every other five-gallon jug of floor cleaner delivered to each floor of the towers for a month prior to the attack was really C-4? Then they are placed on specific spots in the building and detonated by receivers built into the jugs.  Remember, you don't have to vaporize a steel beam  under the loads those were experiencing at the time of the attack, you simply have to start a tiny stress facture and Isaac Newton does the rest.

BTW, I don't think it was done this way, I'm just looking at a what-if scenario.

Larry J