I think it might be the other way around. The grays trying to get us to work for them. I've heard the theories about why ET would be doing sexual experiments on humans but I think they are wrong. The aliens need workers, here or on another planet, hence the hybridizing. They obviously have some motive and most motives are selfish. Humans traveling to other planets and finding other humans has been a plot used by Hollywood several times, Stargate, SG-1, Battlefield Earth.
You can take this idea a long way. Explains many things in Earth's past. Aliens destroying European cities in the Middle Ages, aliens fighting for the allies in WW-II, alien ships seen by pharoahs, clones (Adam, Moses, Jesus). Gotta quell those natives before you can make use of them. Look at the sabotage every human civ has undergone (like the US now, Europe a few centuries ago, Rome, Greece, Egypt).
If the GOV knows this then it makes perfect sense that they would keep quiet and work to develop our technology until we could fight back. We're probably a long way from that. Fits with ideas from the X-Files - "The Project".
They have their robots in place. May seem far fetched but we aren't talking about some clunky mechanical type robot. Way more sophisticated than that. Even a doctor can't tell. Its always easier to take something mother nature created and modify it, than it is to create something from scratch. And that is what they did (do). Does the 20th century make more sense now?












