9/11 is a conspiracy.
It kind of is, there is a small possibility that 9/11 might have been a false flag attack by the U.S government forces.
Also, the official 9/11 report says that the black boxes from the planes were never found, there were actually 2-4 black boxes found, also, why weren't the planes shot down, why is there no physical evidence that anyone in Iraq was even involved, why was there never a REAL investigation? That makes it more of a probability that 9/11 was a false flag attack by the CIA and Mossad.