Illustration: HuffPost; Photos: GettyI spent several weeks in 2008 and 2009 traveling in Germany to research, shoot and screen a documentary. The subject of the film was a German-born American Jew who returned to his childhood hometown in 1969 — 30 years after his family’s harrowing escape from the country.During my first visit, while searching the town archives for local photographs taken during the Nazi era, I was surprised to find only a few photos were available.Advertisement “There is little in the archives from those years,” my colleague Reverend Karl explained over beers one evening. “The photos you seek are...