SMELTING IS NOT BURNING. Television's Rosie O'Donnell is properly taking stick for her endorsement of conspiracy theories about the structural failure of Building 7 at the World Trade Center complex. That said, nowhere in this video is either the reduction of taconite to iron or the decarbonization of iron to steel equivalent to putting solid metal into a crucible and positioning it over a flame. One does not turn down the gas in a basic oxygen converter, although one can moderate the reaction -- try it -- (which includes the generation of rust: contemplate the implications of that Fe -> FeO) by adding more scrap to the charge.