Some of this video is thought-provoking but I do not believe in this conspiracy theory. Here is another good source to prove much of this video incorrect.
Debunking the 911 Myths
Former aviation pilot John Lear returned for a ...
Former aviation pilot John Lear returned for a discussion about photographic evidence for cities and mining operations on the moon (view material he provided). He said that mining operations for such substances as helium-3 have been going on for years, and that antigravity ships, secretly launched from Antarctica, arrive at the moon in only one hour's time. He cited a poster known as "sleeper" (blog) at the abovetopsecret.com forum as one of the sources for his information.