I keep watching it and studying the artistry in the production, and I keep noticing subtle things that say so much and convey the story. It's interesting that when they shift gears from the history to the present, you hear a beeping monitor bringing you back to present tense before the images are displayed. There is also so much honesty and emotion in all the people who are interviewed on film. My husband and I make our own video documentaries and I'm learning so much by studying this one. Ken Burns is a master.