This is almost certainly a fake. At the same time, if it actually happened, the video would have immediately been seized for national security reasons, so the only way it would ever surface publicly is somewhere like YouTube. Still, highly likely a hoax video. The phrase "CNN Breaking News" is the key. The video never appeared on CNN. Also, note the link to a sales point on Ebay for alien themed items.

http://www.youtube.com/watch?v=OV8w7O2Rl8Q
Story Source:
http://www.youtube.com/watch?v=OV8w7O2Rl8Q