America's National Parks. They have been called our country's greatest idea and a gift to the world. While Idaho doesn't have a national park entirely within its borders, the state does have several National Park Service sites. On this week's Dialogue, host Joan Cartan-Hansen looks at those assets in Idaho and talks with three NPS Superintendents about the challenges facing these natural wonders and historical gems. Cartan-Hansen is joined by Doug Neighbor, Superintendent of Craters of the Moon National Monument; Wallace Keck, Superintendent of the City of Rocks National Reserve; and Gary Somers, Superintendent of the Nez Perce National Historical Park.