The Moon is a wealthy treasure trove of matter. It's rich in h2o, titanium, aluminum, iron, oxygen, silicone, magnesium...ect. Since the moon has no atmosphere, it is also a perfect launching pad and space port for future human endeavors into space (little to no atmosphere makes rocket powered engines easier to launch...ie less resistance).
As my favorite scientist and cannabis smoker, Carl Sagan would say, "All civilizations become either spacefaring or extinct." It is in our best interest as a technological species to and a necessity to move beyond our small blue planet. Why put all your eggs into one basket?
It has become crucial to understand in our time that we are not alone in the universe. Thanks to the drake equation, we can understand how much life might be in our own galaxy. Civilizations that have grown and matured for millions of years past ourselves would have discovered, like us, the fundamental laws of our universe. Space travel is possible in more then one way. I am convinced that not only our planet, but the planets and moons around us have been visited many times over their lives.
The Brookings report was gathered and written in 1961 by the famous Brooking Institute. In this few hundred page document there were many interesting pages of information. It talked about not if space travel was possible, but confirmed the number of ways that it could be done. The document also goes on to state the social impact of visitors on our planet and the psychological effects that man would go through (riots, losing religion...ect)
The document goes on to state that we, as humans, would most likely find remnants of past visitors all around us in the form of archeological evidence.
First and foremost, NASA is a defense agency not an exploratory science wing of the government. The Government, like the FBI and CIA hold stock in NASA, as it's sole purpose is space fairing defense and military tactical fighting and re-con.
If you have ever been to their website, they post many amazing pictures. Some of these pictures have strange anomalies not associated with natural occurrences. Many pictures have been "scrubbed" for our, the publics, viewing pleasure. There are some anomalies that make no sense at all.
Buzz Aldrin goes on the say that we must visit the giant monolith on Mars' moon phobos. It is a giant rectangular block that sticks out miles high above the moons surface and can be pictured here:
http://montrealradioguy.files.wordpress.com/2009/07/aa62d35bc151.jpg
http://www.youtube.com/watch?v=bDIXvpjnRws
Many of these anomalies exist all over our solar system. Politicians, military officials, scientists, all know about them. Nasa used to hold meetings and seminars on archeological evidence back in the early 90's. The Godfather of rocketry, Wernher von Braun, was a firm believer on the subject and stayed that was until his death. Jimmy Carter goes on record saying he too has seen craft of unknown origin. Basically every Nasa Astronaut knows about it because they see them often during their space missions.
There is a reason why Nasa scrubs their images before they reach the public. The only known reason for this is either because they are doing something there, or they are covering up something they don't want us to see...archeological evidence of non human intellect.
Every brilliant mind knows how important it is to get off this planet and travel outward to the great unknown. Canceling important missions for the further understanding of our close environment is a direct assault on the learning and procreation of other planetary bodies and our understanding of space. It is an oxymoron and Sagan, a firm believer in life outside our solar system would be disappointed.