That does not appear to be the distinction you are making in your comment #2.
Your killing me...I cant reason or argue with you guys anymore. I give up. You win, there is no distinction between citizens and non-citizens in this matter. Let in everyone from anywhere, without tests, screenings or interviews. Then let them all live in your town and breath on you in your subway...etc, etc, etc...like I said..who cares..right?