'What if' question on the fate of the WTC buildings ... [NOT conspiracy theories!]

No, it wasn’t. The building was so weakened structurally that when it was demolished it only took about 1/10 of the usual explosive to bring the building down. And they figured it would have cost more to repair the Murraugh building then it would to have built a brand new building.

David Macaulay knows how to do it.