Let me appeal to the cynic in you. If we really did not go to the moon do you really believe that the 10,000 plus people involved in the Apollo Program could keep that a secret for what is now decades? Every last person? The contracting for components and services reached into many communities including here in the Greater Rochester, NY area so its not like everybody involved was corralled into a tight community for Big Brother to watch them all. As to other countries having their own space program 99 percent never had close to the money needed to do so.