Here’s Charles Krauthammer’s proposal to deal with the enormous problem of illegal immigration: First a Wall — Then Amnesty.

My proposition is the following: a vast number of Americans who oppose legalization and fear new waves of immigration would change their minds if we could radically reduce new — i.e., future — illegal immigration.

Forget employer sanctions. Build a barrier. It is simply ridiculous to say it cannot be done. If one fence won’t do it, then build a second 100 yards behind it. And then build a road for patrols in between. Put cameras. Put sensors. Put out lots of patrols.

Can’t be done? Israel’s border fence has been extraordinarily successful in keeping out potential infiltrators who are far more determined than mere immigrants. Nor have very many North Koreans crossed into South Korea in the last 50 years.

Of course it will be ugly. So are the concrete barriers to keep truck bombs from driving into the White House. But sometimes necessity trumps aesthetics. And don’t tell me that this is our Berlin Wall. When you build a wall to keep people in, that’s a prison. When you build a wall to keep people out, that’s an expression of sovereignty. The fence around your house is a perfectly legitimate expression of your desire to control who comes into your house to eat, sleep and use the facilities. It imprisons no one.

Of course, no barrier will be foolproof. But it doesn’t have to be. It simply has to reduce the river of illegals to a manageable trickle. Once we can do that, everything becomes possible — most especially, humanizing the situation of our 11 million existing illegals.

An issue Krauthammer doesn’t raise in this article is that as soon as the wall starts to go up, the international loony left community will scream bloody murder. “Apartheid wall,” anyone?