It's the same stuff as home heating oil, kerosene, or diesel. The World Trade center buildings were HUGE, not even close to a confined space. One floor had a whole shopping mall and train station on it; one floor.
I just realized that maybe folks who don't question the official story may think that "truthers" are just dumb people who watch a youtube or two, but if you really engage many of us, you'll see we have actually done a lot of study on the matter and can point out many many glaring inconsistencies and that most attempts at "debunking" focus on one tiny thing they have misconstrued in the first place or overlooks basic science. I got over calling non-truthers names a long time ago, so if you really want to learn about what I know, I'll be glad to help you out.
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