California's Iconic Yellow Immigrant Road Sign Now Borders on Extinct

Or, border enforcement works.

And frankly, California's enforcement at San Ysidro is really aggressive, with layers of militarized fencing and aggressive border patrols, with high-technology as well. We can expand this to the rest of the physically-adaptable border. It's doable, totally. It's a political question. That's all.

But see, "Just One More Illegal Immigrant Road Sign Left on Interstate 5."