Nick H., on 21 Jul 2014 - 18:59, said:
I can provide evidence that proves I am human and have been here all my life. Aliens should be able to provide similar evidence instead of their teenagers borrowing the ship to graffiti in corn fields.
You can provide evidence that proves that you are human because you are raised to believe that. What if, just if the aliens have presence here on earth but they were raised to believe that they are human and not know their true identity and their "parents" are monitoring us through them?