WASHINGTON - Condoleezza Rice took the oath as secretary of state - a second time - with President Bush's assurance to the world that she will lead by "character and conviction and wisdom." Rice pledged, in response, to use diplomacy to widen the community of democracy. "You have given us our mission and we are ready to serve our great country and the cause of freedom for which it stands," she said. Supreme Court Justice Ruth Bader Ginsburg, a neighbor in Washington's Watergate apartment building, administered the 137-year-old oath in the State Department's formal dining room Friday. Rice's uncle Alto...