Nine years ago I had a long chat with the man entrusted with investigating the collapse of three skyscrapers in New York on 9/11. From the off he knew what caused the collapse of World Trade Center 1 and 2. “We were not looking at a bomb. We knew what the source of the problem was, which was the airplane impact. There was substantial evidence for that. We didn’t really need to understand what caused the building to collapse. We knew what started the process.” Continue reading →