As for WTC7...
Hours before it collapsed, uncontrolled fires were raging on multiple floors, a huge gash (from Tower debris) covered a full one third of the building, and it was 'bulging' on one corner.
What do ya reckon? Possibility of collapse? Safer to leave it alone (everyone was out) than risk lives trying to fight the fires inside? Or would you have gone in?
Oh, and by the way, read a report a few years ago from a firefighter in the Towers. He remembers looking up a lift shaft to see it was buckled, and realised that was a very, very bad sign that the building's structure was seriously damaged. He expected a possible collapse.
Why do Truthers never mention these comments? And if you want more, there are many first-hand accounts on the numerous firefighter websites. Go read them.
All this is explained in
www.911myths.com
This is all old news, completely debunked. But why spoil a perfectly good fantasy?