I was wondering when this would come up. I've had this debate, and even though you didn't ask or accuse anything, I have to say it. (I'm going to keep saying "you", but I don't mean YOU.) It can be debated that someone might have known it was coming, or that something could have been done to stop it, but wasn't...that's not for me to say.
What I can, unequivocally, tell you is that there was no controlled demolition. I can tell you that for two reasons.
1) Explosives do not handle fire well. This might shock you a bit, I know.
2) Explosives really, really, do not like pressure or impact.
Remembering 9-11, watching the videos, you'll see that the "pancaking" or "controlled demoliton" starts right where the fire was worst. (See 1 above) That fire burned for quite some time.
Also, that fire happened because a big ol' fuck off PLANE hit it at more than walking speed. It happened right THERE because of the plane. (See 2 above).
Even if that plane hit a building that was wired to begin imploding right at that spot where the plane hit, the explosives would have either immediately detonated, or failed to fire altogether. Watch the video, there's no arguing that the collapse starts where the roughly plane sized holes were.
As for building 7 and the "pull it" bullshit. I've seen the videos and I've been around more blasts than I could count. Explosives make a very distinct noise, and you don't mistake them for anything else. Listen to 15 videos on YouTube showing controlled implosions then listen to the videos of Bldg 7 and the Towers. The sound signature just isn't there.
You also have to do a lot of work before hand on an implosion. Beams have to be mostly cut, miles of det cord have to be strung and timed to go off. Det cord is either taped to itself, has half-hitch knots connecting it, or sometimes there are small plastic clips,by the way. One guy couldn't do it, 10 guys might, and it wouldn't be easy to hide. Not one credible person has ever come forward, or had a deathbed confession, nothing. 50,000 people and NOBODY saw anything?
Also, this is completely anecdotal, but I know a lot of blasters. Nobody says "pull it". Everyone says "Fire in the Hole" or "Fire Fire Fire."
I don't know why it bothers me so much. People were panicked and confused and faced with something they'd never seen before, of course they misinterpreted things. If you heard a transformer explode, you'd think it was a bomb at that point too.
There were 2,996 homicides that day and we seem to have forgotten that. They were all like us, had families and probably hated their jobs like we do, and because someone misinterpreted "pull it", these people are just the background statistic of this stupid conspiracy theory. I don't know.
I won't respond to any further 9-11 stuff, btw.