In a nutshell I think Steven Hawking is the only person who has a realistic view on what will actually happen if and when we have visitors from another planet.
"If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans," he said. "We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet."
It's absolutely nonsense to think they're here already abducting drunk rednecks, mutilating cows and crashing into the desert. Really? Mutilating cows and making crop circles then hiding in the weeds giggling and waiting to see what we do? Would NASA send astronauts a million light years away to mutilate a cow or anal probe a drunk from Alabama? Alright then. When they find us lets hope they're more like Vulcans then Klingons!!
I still stick to the fact that area 51 is just a military base doing advanced research.