Well, as a practicing amateur xenobiologist, I feel well-qualified to weigh in on this subject. I usually don't flaunt my credentials here, but prefer to hold them in abeyance until there is a reasonably or better attractive female within earshot of my pontificating while bellied up to the bar at my local watering hole.
I didn't actually watch the video, but that should in no way disqualify me from giving my expert opinion of it. If I was an alien, I'd stay the hell away from this joint. I mean, really, here you are with the technology to get here in the first place, plus you've figured out how to match your mass exactly with Earth's gravity to the point that those who have witnessed your arrival to date never seem to report you floating off or conversely not being able to move, plus the oxy/nitro thingy, I mean, jeez, as an alien you obviously have your fecal matter centrally located, or you may not have to do that at all, as I never heard any of the eyewitnesses describing an alien taking a dump.
So you get here, and what do you find? I reckon the first thing would be found on the radio frequencies. After you carefully fine-tune your equipment, you discover Rush Limbaugh and Glenn Beck. Now, while I am a (albeit still amateur status) scientist, I'm not qualified to speak of my prospective alien life form's political leanings as regards one country on a relatively puny planet as planets go- in a universe that I already have on good authority (my own experience, as I've been on this friggin' spaceship for far too long) consists of at least 7 plus 21 zeroes stars-wise. So you listen to Rush for a couple of hours, learn that something called a democrat is evil and to be avoided, and further that something called a John McCain cannot save these guys' planet, because he didn't listen. Then the next thing you find is the medium apparently known as TV--- You discover this new creature called a Keith Oberlman. You watch this critter for about what you have discovered to be 30 minutes and determine that this particular place has already been colonized by one of your competitors, as you are a logical being, contrasted sharply with these nut-jobs obviously from places you have yet to, or want to, discover. You put it on your intergalactic expense report as a waste of gas and get the hell out of there...
On a more serious note, I bring you:
http://geeksaresexy.blogspot.com/2006/10/hubble-deep-field-most-important-image.html Which of course leads to this:
http://www.setileague.org/general/drake.htm How 'bout the idea that there are more stars than there are grains of sand in our oceans, beaches and deserts? At least in what they call the "known" universe? I'm likin' the odds of aliens.