okies, i got a theory for what it counts for, i'm not sure whether i believe this but it does make sense in a werid way...
ok, so supposing all of creation started from this "big bang" and it traveled in a sphere outward, i think that our planet was formed say X distance from the orginal blast, so it would make some sense if something similar happens at all 360 degree's around the orginal blast at X distance from the blast. so if life formed on our planet, the right chemicals could just have easily spread somewhere else, right?
i know its a little far fetched, its just an idea
i don't really go for the whole "being watched" thing, i mean if they are then i'l be damned but. It fits into my idea of the "secret weapons of the US government" my opinion on that is simply that they want to imtimidated people into doing as they say and want, and thus came from the government itself. They use stories of alien cover ups to promote the idea they have superior technology. Just like religions hundred of years ago, its just another from of control