Alright at the risk of dredging up an old topic and lighting a fire, Ive been seeing a resurgance of "conspiracy theories" concerning 9/11, especially on facebook. One of their "biggest" arguments is the temperature of jet fuel, and the melting point of steel. Well, this blacksmith shows exactly what happens when jet fuel burning will do to structural steel. The video takes 2 minutes, it will change your life.
Also keep in mind, that inside a confinsed space, the internal temperature around the steel will be hotter just because the space is confined-likely even hotter then whats in the video.