 And from the Walton Family Foundation, working to create access to opportunity for people and communities by tackling tough social and environmental problems. More information is at waltonfamilyfoundation.org. This is NPR. Support comes from the North Shore Scenic Railroad, welcoming Thomas the Tank Engine and his friends to Minnesota during the first two weekends in August. Tickets for a day out with Thomas on the North Shore Scenic Railroad are at DuluthTrains.com.