Ken Burns live at the National Press Club

Filmmaker Ken Burns
Filmmaker Ken Burns stands with a camera during the shooting of one of his previous documentaries. "The National Parks, America's best idea" is his latest documentary and is playing on PBS stations across the country this week.
Lisa Berg/Associated Press

Documentary filmmaker Ken Burns speaks live at the National Press Club about his new six-part PBS series on the national parks. More than six years in the making, the series is titled, "The National Parks: America's Best Idea."