A U.S. Postal Service employee stashed nearly 50,000 pieces of undelivered mail in her California home, according to a criminal information filed against the worker.Federal investigators charge that Sherry Watanabe hid "approximately 48,288 pieces of United States mail" in her apartment. The mail was intended for delivery to customers along Watanabe’s route in Placentia, an Orange County city.Watanabe, 48, was named in a one-count felony criminal information filed Wednesday in U.S. District Court in Los Angeles. In a plea agreement with prosecutors, Watanabe has admitted to the mail hoarding.According to the plea agreement, Watanabe was hired as a mail carrier...