ThankQ, I was there working ground zero that day as a volunteer and I can tell you for a fact, that they had to weaken the structure first because some of the main steel girders were about 8 feet wide amd dee[ when laying on their sides. A plane made of mainly composite aluminum could never in a million years take them down. It took one worker with a 4 foot flame, 8 hours to score 1/8 the diameter of that one girder.
The Irish have to know their place in finance. Remember Cantor Fitzgerald was the target of the first strike and a direct message.