A St. Paul-based development group wants to build what's expected to be the largest mixed-use development on the Hiawatha Light Rail line. That line will connect downtown Minneapolis with the Twin Cities international airport and the Mall of America in Bloomington. Minnesota Public Radio's Cathy Wurzer talked with Scott Smith, who covered the story for today's edition of the "The Business Journal." Smith says this would be the largest project ever for McGough Development, and its size was influenced by the light rail line.