Saying the gov't wont disclose information about aliens because it would cause mass panic is a cop-out excuse for lack of evidence on the part of conspiracy theorists. According to gallop polls 70% of people already believe Aliens are here, and guess what, the mass panic is not happening. Plus, if the gov't made it a point to cover up anything that might cause mass panic, why didn't they attempt to cover up the recent stock market crash, which caused a heck of a lot more panic than aliens would. The gov't isn't capable of such a coverup. The fact is, that if aliens are real, and here, then they wouldn't help us with technology, nor would they be interested in being part of government affairs. Their technology would be so far ahead of our, we are the social equivalent of a colony of ants. If you were a scientist studying ants, would you help them with their technology, and get involved with their gov't? Think about it that way. Plus we are talking a culture who has mastered time and space. They aren't going to be crashing on earth, building large primitive stone structures, and mutilating cattle. In short. No space aliens are not here.