The government has been relatively transparent with Project Blue Book. It was an endeavor for the US government to catalog and examine every instance of supposed alien contact, visitation, and spacecraft reported to them. The project spanned years (and many incarnations), and its official result was that there existed no substantial evidence that these incidents were the result of alien visitation.

But that didn't stop conspiracy theorists. In addition to challenging the rigor of the study, some "experts" on the subject stand by the claim that Blue Book became a distraction and cover-up from the reality of alien visitation, which included a top secret international squad called Majestic 12 to perpetrate the elaborate smoke-screen. Amongst the alleged weaponry of this massive cover-up are disinformation campaigns, character assassination, and elaborate webs of government lies.

Another weapon in the cover-up arsenal is the network of supposed Men in Black type of agents responsible for doing the actual dirty work. You've seen them in will smith movies and on the X-Files, but die-hard alien conspiracy theorists claim they're everywhere, as CIA agents, or as shape-shifting aliens, or even inter-dimensional beings. Some even report encounters with these men in black (like the account in the video above), and some say they have the smashed cameras and bruises to prove it.

But WHY would the government try to cover up alien invasions? Just what are they hiding