After 9/11 attacks, there should be steel furnitures only. Everybody has seen the second plane crashing into the south tower. I think 75% jet fuel caught fire and disappeared instantly the moment plane hit the building. Only 25% jet fuel was burning in South tower. Combination of fuel fire and wood fire destroyed WTC buildings (9/11). Steel never catches fire. Also steel furnitures will save world Forests and Trees. There are "steel buildings". No concrete, no bricks, no woods. Building is completely made up of steel. They look beautiful and rich. Search for "steel buildings" in Microsoft "Bing" search engine or Google. Steel industry will explode with this information.