scott shafer sat down earlier with burns to discuss why a speech from the civil war moved him to make film. first, a clip from the documentary. >> okay, guys, let's sit up straight in our chairs. let's get ready to start morning meeting. today we are introducing a tradition here at greenwood, studying and memorizing the gettysburg address. and in a lot of ways, it is a right of passage. >> this is one of the most famous speeches of all time, and this was, like, 200 or 300 years ago? so, even if you say it for, like, two minutes, it still means a lot. >> four score and seven years ago, our fathers brought forth on this continent, a new nation, conceived in liberty and dedicated to the proposition that all men are created equal. >> well, ken burns, welcome. >> thank you for having me. >> your latest film weaves together the gettysburg address with the story of this school in vermont where boys who have learning disabilities memorize and recite the gettysburg address. what was it about that school that you found so compelling? >> i live across the river in wall poll, new hampshire, and a