[Oceander]

Orders of magnitude more expensive, and still North Koreans make it into South Korea despite the North's best efforts. Still "ineffective," as Perry would say.

[itsahoot]

Still "ineffective," as Perry would say.

Then those stupid kids who accidentally cross into Nort Korea should have no trouble getting out.

Proof of your statement would be to show me 20 or 30 million NK's that have illegally immigrated to the South.

Doing nothing accomplishes exactly what your solution offers. Nothing.