Work on the first-ever WiFi and cellular phone service in the history of Los Angeles subways began this week, soon enabling rail passengers 80-feet below the city to surf the web and place and receive phone calls. The Los Angeles County Metropolitan Transportation Authority broke ground on a two-year, $800,000 project that will bring WiFi service to four underground stations of the Red Line subway by May, and in-tunnel cellular service to the line's 150,000 daily riders by August, said Robert Fischer, Metro's systems project manager.