WASHINGTON - The scene: A diner and a jukebox. A nostalgic song. A long fade to black. It worked as a finale for "The Sopranos." It now marks a new beginning for "The Clintons." Hillary Rodham Clinton's presidential campaign on Tuesday unveiled its new campaign song with a Web video that spoofs the final scene of the popular HBO mobster series. The video and the announcement of Celine Dion's "You and I" as the official Clinton tune cap a monthlong, interactive Internet campaign that drew more than a million viewers to the Clinton campaign Web site and to YouTube, the...