How can it be more open than it is?
Ask the Indians of the 14, 15, 1600s.
We can all stand at the border handing out milk and cookies (and bottles of Gatorade) while giving these hard working illegals words of encouragement (in Spanish) and directing them to the nearest Mexican consulate for even more help and info on how to milk as much money as possible out of the US. Oh...and make sure we tell them to enjoy their visit!
Tuor