Here's a short clip from CNN reporting on The Disclosure Project which claims that the US Government knows that there has been contact with ETs and is keeping it secret. They are calling for a public Congressional inquiry.
I've also included a longer video which includes testimony from retired military personnel and much more information.
In my view it's obvious that we're not alone in an infinite universe...
CNN Reports on the Disclosure Project
Video: The Disclosure Project
The Disclosure Project
The Disclosure Project is a nonprofit research project working to fully disclose the facts about UFOs, extraterrestrial intelligence, and classified advanced energy and propulsion systems. We have over 400 government, military, and intelligence community witnesses testifying to their direct, personal, first hand experience with UFOs, ETs, ET technology, and the cover-up that keeps this information secret.