As I understand it, one piece of evidence cited by 9/11 conspiracy theorists is that fire can't melt steel. Thus the fires generated by burning aircraft fuel and office papers couldn't have possibly brought down the World Trade Center buildings. As the great structural engineer Rosie O'Donnell said, "For the first time in history, steel was melted by fire. It is physically impossible."
Well, yesterday, a chunk of freeway overpass in Oakland collapsed. It collapsed because a fuel truck had crashed and exploded, and the resulting fires - you guessed it - melted the steel in the overpass. It happens, folks. A steel girder holding up hundreds of tons of concrete doesn't have to melt to a pool of liquid. It just has to weaken, and intense heat will do that.
Okay, I guess this is the second time in history.