>>512207452
the first video literally explains why it was a domino type collapse. the first floor reaching the critical temp to expand the trusses too much fell on the next overloading it.
it doesn't take a genius. only WTC7 was artificially destroyed.
you think BAD ENGINEERING is rare in the US?
https://www.youtube.com/watch?v=Q56PMJbCFXQ
lol