Guest host David Horton of Radford University talks with Clay Jenkinson about Ken Burns' latest documentary, The American Buffalo, which premiers on PBS on October 16. Clay has now been in five of Ken Burns' documentaries, and has been one of the historical advisers in two of the films. Among the topics of discussion: Who was William Hornaday and what role did he play in the saving of the buffalo? What was Theodore Roosevelt's role? How do you prepare to be interviewed in a Ken Burns film? Why is the buffalo so important to America's sense of its heritage? Clay also speaks of his own long association with the buffalo, first seen when he was a child in North Dakota's Theodore Roosevelt National Park.