United Press International: Japan is twinkling with Christmas lights this season, as streets, parks, shops and even private homes are lit up for the Christmas season. This year, economic and colorful LEDs, or light-emitting diodes, are widely popular. One of Japan’s western prefectures is banking on LEDs for its future prosperity. Though hardly a Christian nation, with church-going citizens reaching barely 1 percent of the population, Japan has been doing all it can to look like one at Christmas time. Shopping …