They probably figured if they could take out the bottom of the building the rest should pancake, because they saw it happen on 9/11 over and over again, with Building 7, and this was confirmed by the US government's official reports on the event.
...perhaps it would have worked out, if they had started some fires on the upper floors first.....or contacted CDI,Inc.
Luckily the building was not perched on a hill...
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....TM7
