This is true and i see alot of posts quoting this, i for one am sceptical about what took place on 11/9 but these comments get on my nerves jet fuel burns very hot like 1500 degrees hot and this amount of heat will take strength away from steel by more than %50 also there was more than just jet fuel burning. Edit: here is my problem, there are people that study and practice for years to bring down buildings without having them fall over and destroy their surroundings. Now im not sure what exactly it takes to do this but i definately witnessed the wtc's coming down in a similar fashion.