OSAKA -- It's 2030, and Japan is facing an unprecedented social problem. For the past quarter-century, ever since the population began declining, the government has encouraged the hiring of foreign laborers. But measures to control immigration have failed, and in some towns and villages foreigners now make up more than half the population.

Long-term foreign residents, who are more prosperous and politically connected than recent arrivals, worry the government is ignoring them and focusing only on the influx of newcomers, while labor unions complain foreign laborers are stealing their jobs.

As the problems mount, the public and media have begun asking why these problems weren't anticipated in the first decade of the 21st century, when it became apparent Japan would need foreign workers.