The towers were high so they imagined that a plane could possibly hit the tower and made the tower to be super solid, not imagine a terrorist attack. Plus, tower 7 hosted classified communcation documents from CIA and FBI. No steel-framed structure ever collapsed by fire itself. Never happened: some tall towers in Spain already burnt and still didn't collapse (oops). Funny how they didn't mention its collapse too. And they found thermite on the ground of WTC Twin Towers and Tower 7. Look up "wtc beams cut" and you'll see some perfect, angled cuts in solid steel beams. And the fire in the tower is so small... it's ridiculous to think it collapsed by fire. You can also see videos on youtube of people calling just before they die, like this video, and many people claimed to have heard/seen explosives. Know something about chemistry and physics? Thermite is composed of powdered aluminium and powdered iron oxyde (III). Mixed together and ignited, this exothermic reaction creates A LOT of energy, mostly heat and light, and can cut through steel like butter, hence the perfect angled cuts. Since the products of this reaction are Al2O3(s) + 2Fe(l) (liquid because of the high temperature), it's really easy to trace it back to the original source: thermite. Once the reaction is started, it lets the oxygen to bond with aluminium, leaving the iron alone and liberating all this heat due to the REALLY strong links between Fe and O being broken (electrical charges of 3 and 2 are really high). This is a cheap, and fast way to make thing fall to the ground. This is why I doubt that it could have fallen by itself due to fire. Do some research, look at all the things you can about 9/11, including what stands against your point and what supports it. Look at it from all the possible angles. I once believed it was an attack. I was young when it happened and didn't know what was going on. But then I started hearing about a possible demolition etc. but still didn't hear about tower 7. But you know what? I would stick to the gov's version.. Then after seeing more and more about it, I started think "what does the gov have against the discovery of thermite on the ground, about tower 7 collapsing by itself. And why would they even do this". But then you take a look at what it created: mass control. They installed a "threat" and made people believe in this threat. but seriously, have you ever been in real danger since? No. They are the real threat.