If you hate Bush, then 9/11 was a conspiracy ginned up by the current administration to start wars to take over the Middle Eastern oil. This has parallels with the Russian apartment bombings in Moscow in 1999 that were used to start the second Chechen war.
If you like Bush, then 9/11 was done by fanatical Islamic fascists lead by a egomaniacal leader.
Crashing fuel-laden jet planes into skyscrapers is not a new idea. The Columbine duo had fanatasies about crashing a 747 into Manhattan before their killing spree on April 20, 1999. No major newspaper or news outlet has discussed the parallels between the Klebold fanatasy of the 747/Manhattan crash and 9/11 because it would make Osama bin Laden’s crew look like a bunch of childish nihilists.
You have to understand that most news outlets and journalists hate this country.
Just because you can’t melt a metal, doesn’t mean that it will *not* lose significant strength well below its melting point. You don’t have to melt a metal just to make it sag under a significant load. The steel used in trusses is not refractory and will loses most of its strength by the time it reaches red heat, 1200 Fahrenheit. If you want hot strength, then you have to use nickel or molybdenum alloys. These alloys are exotic and only used in jet engines and powerplants.
One of the proponents of the 9/11 conspiracy is some loser 47-year old graduate student who has no understanding of metallurgy or any other real science.
There is YouTube footage of an F-4 phantom jet crashing into a thick block (6 feet thick, at least) of concrete at 500 mph and completely disappearing. Nothing comes out the other side of the block. The speed and heat of impact melts and crumples the plane.
Conspiracy theorists tend to be a bunch of scientifically illiterate political fringe types. Either they are a bunch of extreme leftists or they are religious zealots. Losers!