Do you believe the 9/11 conspiracies?

I heard that there were no commercial airplanes on that day. The first had a rocket on it, the second there is a picture that shows it is a military plane, the pentagon had a missile and not plane hit it, and the plane in Shanksville took up a very small hole. Plus, I did some investigation of my own, and I found that the victims of flight 93 do not appear on online social security death indexes. So what's going on here?