If you ever follow belief that the simplest explanation is the correct one then consider the simplicity of a false flag operation: Perhaps Osama actually works for the CIA... the whole terrorist thing is just a charade, we attack ourselves to garner our and hopefully worldwide hatred against radical muslims, and from the fallout muslims as well, to justify the warring and nation building with multiple middle eastern countries such as Afghanastan, Iraq and next Iran. For oil, the petro dollar, israeli agenda... or what ever conspiracy you happen to favor.