Here is a problem that may haunt Korea soon:

Despite facing an imminent labor shortage as its population ages, Japan has done little to open itself up to immigration. In fact, as Ms. Fransiska and many others have discovered, the government is doing the opposite, actively encouraging both foreign workers and foreign graduates of its universities and professional schools to return home while protecting tiny interest groups — in the case of Ms. Fransiska, a local nursing association afraid that an influx of foreign nurses would lower industry salaries.

In 2009, the number of registered foreigners here fell for the first time since the government started to track annual records almost a half-century ago, shrinking 1.4 percent from a year earlier to 2.19 million people — or just 1.71 percent of Japan’s overall population of 127.5 million.

Experts say increased immigration provides one obvious remedy to Japan’s two decades of lethargic economic growth. But instead of accepting young workers, however — and along with them, fresh ideas — Tokyo seems to have resigned itself to a demographic crisis that threatens to stunt the country’s economic growth, hamper efforts to deal with its chronic budget deficits and bankrupt its social security system.

Japan Keeps a High Wall for Foreign Labor [New York Times]

Americans (or at least majority of Americans who make policies) are wise to continue welcoming immigrants. Korea is trying to follow suit with their newly amended Citizenship Act, but it still has a long, long way to go.