Efraim Zuroff is a man who helps find bad people who did bad things during World War 2. He thinks it's important to find these bad people so that they can be punished for what they did. He is kind of like a detective, but instead of looking for missing things, he is looking for bad people. He travels all around the world to different countries where these bad people might be hiding. He talks to people who might know something about them and looks at old pictures and documents to try to figure out where they are. It's like a big puzzle and Efraim Zuroff is really good at solving it. He thinks it's important to make sure that bad people get punished for what they did so that it doesn't happen again in the future.