Ken Burns: Documenting America’s Best Idea

Ken Burns may be best known for his monumental documentary “The Civil War,” which was viewed by more than 40 million people when it premiered in 1990, but he has been producing groundbreaking documentaries for more than 30 years. He has won 10 Emmy Awards and also been twice-nominated for an Academy Award. Here he discusses “The National Parks: America’s Best Idea,” along with Dayton Duncan.