Reply #4: Fences have sometimes worked well at keeping people IN... [View All]

[pampango]

see prison wall and the Berlin Wall, but they have to be backed up by firepower which this wall will lack (since I hope no one expects that people who get near or past the wall will be shot, like they were at the Berlin Wall.)

You are right, though, that walls built to keep people OUT have a miserable history of failure like the Great Wall and the Maginot Line. I don't think enforcement will ever work. Certain sectors are so used to hiring relatively cheap immigrant labor that they will encourage politicians in both parties to not make them raise wages and hire American workers.