The Earth has been visited by Aliens for thousands of years. The governments of the world have kept it secret for many reasons. Mostly because they wish to retain there structures of power over their respective populations. The US governments main goal is to gain as much technology and information possible before being forced to go public. Roswell happened and its a known fact that it was a real event. It was no damn weather balloon. The government has lied about it for over 60 years now. They have briefed every sitting president since 1947, with the exception of Carter because the control group felt he could not be trusted to keep it a secret. These are known facts and there is more than enough credible documentation to back up every single bit of it. Whistle blowers who have worked for the various intelligence agencies have come forward in their dying years to break their security oaths and tell the truth of what happened. People are just so brainwashed at this point that they cannot even see the truth when its staring them in the face.