The chorus for nationalizing America's struggling banks is growing louder, and support for the idea comes from strange sources.

Alan Greenspan has said that he understands that "once in a hundred years" the government needs to take over the banks, and now is the time. Sen. Lindsey Graham, a Republican from South Carolina, has called for doing what works and "if nationalization is what works, then we should do it." That is the kind of pragmatism that leads to socialism.

There...