USA told stay away from moon 1972?

The USA landed on the moon In 1969 and continued to send missions there until December, 1972 when the last astronaut walked and drove a lunar rover on the moon. So why did the USA not go back. The helium 3 found in abundance on the moon is worth over 3 million dollars per ounce. The technology that exists today versus what was available in 1969 is mind boggling. So why would the USA not go back? Buzz Aldrin said that there were alien structures on the moon that were huge. There were alien ships on the moon that were way bigger than ours and that we were warned to stay away from the moon. Why has the media all these years ignored this story? There is no way we would stay away from the moon that is so rich in helium 3 and other minerals. There are only two possible answers as to why we never returned. Either we were not allowed to or we have been going to the moon all this time. Please leave comments if you believe we continued to have secret missions to moon or we stayed away because we were told to or we just stopped going for no reason. I personally believe it has to be number one or two.

At 3 million dollars per ounce it seems like it would be very profitable to mine helium 3 on the moon.

The earth as seen from the moon it's a beautiful site.

Looks like possible antenna for alien moon base.

Astronaut Eugene Cernan driving lunar rover on moon in 1972. The last earthling on the moon.