by John Aziz
First things first: the U.S. already has a border wall with Mexico. This is a widely-documented fact, illustrated in detail by National Geographic. If Trump supporters had bothered to do so much as a Google search, they would realize that — whatever one might think of undocumented migration — it isn’t going to be stopped by a border wall. A border wall already exists, and undocumented migration continues.
But what about replacing the current border wall with a bigger one? Surely that will stop migrants from coming across the border? Well, not really. Israel has some pretty high and deep barriers with Gaza, and that hasn’t prevented Gazan militants from burrowing under them and getting in. What is going to stop Mexicans — including and perhaps especially the extremely well-financed drug gangs who surely could gain access to advanced tunnelling equipment — from doing the same thing?