I also heard an echo of my mother, talking about the deaths she cheered in WWII. "It seems wrong now, but things were different then. Don't judge me." The insights about General LeMay, a friend of my father's, were thought provoking, too.
It's a fascinating movie, and offers no conclusions, no analysis, and that's part of what makes it so compelling. It makes you think. It doesn't tell you how you should think. I hope it takes the Best Documentary award.