Say you came here in a UFO..........

You drop from the sky and step out of your advanced tech. ride..........

Here is what would greet you.........

"Government"
-Guys in black suits
-Military with guns

Then you would be subject to Earthly politics {who gets to keep and do tests on you}
You would be locked in some underground base for the rest of your days........
Oh, your high tech ride will be in parts all labeled "Property of Government"

You would see for all purposes the worst our people have to offer and
never be allowed out to see the wondrous things we have......

No matter what your name is they will call you "The Alien"
{All you did was stop on this space debris for a drink of water}

Here's the difference:

If you jump a fence in Texas they will call you "An Alien"
{The guys with the guns cannot touch you}

You get-

-Keys to the City, a parade, a new car, a green card, a job, healthcare, education, etc.........
{All you wanted to do was drop off the drugs you smuggled in}

Go Figure