Humans are indeed an extremely aggressive species in a number of respects; but I don't believe there is a conspiracy to keep alien visitors hidden from the public. Rather, I think it's more likely that this whole subject (and a few controversial others) are exploited to keep the population distracted - so, a form of population control, if you will.
EDIT: Just noticed you added something else to your answer, and updated accordingly.
EDIT: Just noticed you added something else to your answer, and updated accordingly.
You betray yourself: humans refers to members of the genus Homo.
And is also commonly used when referring to Homo Sapiens (or Homo Sapiens Sapiens, if you want), for obvious reasons - or is that your way of saying that I've betrayed my cover, and that in reality, I'm an alien?
