SPRINGVILLE, Utah (AP) — Paris Hilton returned Monday to the Utah boarding school where she said she was abused as a teenager on the latest stop in her yearslong campaign calling for reforms to what is commonly known as the troubled teen industry. This time Hilton was speaking in support of two families who sued Monday alleging that their children were mistreated at Provo Canyon School , the same facility where Hilton spent almost a year in the late 1990s. The hotel heiress and media