Warbler, conspiracy theory is not limited to the US. The problem is that the US is the ONLY subject that any number of people have any vague amount of information on. I could go into muslim conspiracy theory, israeli theory, church theory, etc etc. But it wouldn't have much of a point since nobody really knows anything.
Why do we discuss it? Because it's fun. Nuff zaid. It comes close enough to chaos theory that I can thoroughly enjoy it. Heck, it IS chaos theory, and I love working on that good 'ol bruhaha. The problem is when people become too emotional and turn it into a muckfest.

We don't hate the states, I lived in the states for 4 years and it was some of the best times I've ever had. The media is totally unfair to the US since they concentrate on the negativity (bad news is good news). Heck, my GF was from florida.
If people truly believe the US went and killed their own people they should maybe look around and realize that governments across the world have been doing FAR WORSE for FAR LONGER. On the grand scheme of things, 9/11 being done by the gov. wouldn't be such a big thing is the US wasn't considered the most open, free country in the world. In actuallity its a backhanded compliment. And seriously, if any american's truly think their goverment capable of that? Get the hell out, give your house and home to a family from the middle east or south africa, move into their home and then bitch about your government being out to get you. You have no friggin clue.