I'm thinking Great Wall of China, with Korean barb wire and landmine zone along with electrification and shoot-to-kill guard towers with night vision.
I have met some of those people who cross the border with only a tourist visa and access to $50k cash, let the visa expire, marry an American woman, have kids, work a job, buy a house. They even try to change our culture and language by encouraging ice hockey and saying "eh".
Want DP delivered to your inbox daily? Subscribe here: