Associated PressThe government can secretly track its workers without search warrants if they're using government vehicles, the Oregon Supreme Court ruled Thursday. The court rejected an appeal by former U.S. Forest Service worker Tamera Meredith, who was convicted of two arson counts involving forest fires set in 1998 in the Umpqua National Forest. Authorities said Meredith, a fire prevention technician, set fires so she could earn overtime fighting them. According to court testimony, investigators put an electronic tracking device on her Forest Service truck, and she was seen setting one fire by people in a surveillance plane who tracked the vehicle. Meredith challenged her convictions on grounds that secretly tracking her amounted to a warrantless search that violated her protection against unreasonable searches.