Smith said 21 survivors of the Holocaust have been filmed so far, and they are recording survivors in more languages — Russian, German, Spanish and Hebrew — to capture cultural and linguistic nuances in their responses. Anita Lasker-Wallfisch, who survived Auschwitz and features in The Last Survivors, was also interviewed for the project, once in 2015 in English, and once again this March in German.

How Technology Helps Preserve the Testimony of Holocaust Survivors PBS/Frontline