Ken Burns turns lens on Yellowstone

Wyoming – Acclaimed filmmaker Ken Burns and co-producer writer Dayton Duncan have been filming America's national parks for the past 6 years. Their six-episode series, "The National Parks: America's Best Idea," traces the creation and evolution of national parks over 150 years. Wyoming Public Radio's Rebecca Huntington talked with Burns and Duncan about their new film when she caught up with the filmmakers in Yellowstone National Park earlier this year.