Not technically in error, since that was the initial report. Later reports indicated that the fire-proofing was inadequate for the jet-fuel conflagration. Even if it hadn't been blown off, the metal still would have fatigued and the structure still would have fallen. I think the last report I read on the matter indicated that adequate fireproofing still wouldn't have saved the doomed structure; it would only have bought it maybe another hour before collapse.
Still makes me sad to think about it all to this day. What a horrific day that was... I wish they'd just build back the Twin Towers the way they were on September 10th, only one story higher (just to p~ss off the terrorists).
Absolutely! They could even use a conventional interior structure, just as long as the outside was identical to the Twin Towers. The only other change I would make would be anti-aircraft defences on the roof or each building.