A who's who of the nation's political and legal elite was among more than 3,000 mourners at a funeral Mass for Scalia at the largest Catholic church in the United States. Vice President Joe Biden and 10 of the 11 living justices with whom Scalia served joined his wife of 55 years, their nine children and dozens of grandchildren on a balmy winter morning. He was buried later Saturday in a private ceremony at an undisclosed location.