Fifty years after Mildred and Richard Loving's landmark legal challenge shattered the laws against interracial marriage in the U.S., some couples of different races still talk of facing discrimination, disapproval and sometimes outright hostility from their fellow Americans. Although the racist laws against mixed marriages are gone, several interracial couples said in interviews they still get nasty looks, insults and sometimes even violence when people find out about their relationships. "I have not yet counseled an interracial wedding where someone didn't have a problem on the bride's or the groom's side," said the Rev. Kimberly D. Lucas of St. Margaret's...