Is it because I live on the border? Because I realize that Mexicans are some of the best tunnel makers on the planet.
You can build walls till you are blue in the face. One tunnel will pay off construction costs in one day of illegal immigration. These things open up into empty warehouses like Wrangler or Levis along the border. Empty because of free trade. They. The smugglers. Rent these warehouses for that purpose.
I guess if you do not live along the border like I do. You can be a clueless loser. At least on border policy making.