An interesting yet enlightening way to understand the spread of radiation from Japan nuclear crisis. This video by Hachiya-san is about a Nuclear boy that has a bad stomachache and how the doctors are trying to help him.
It also mentioned the Chernobyl and the 3-Mile-Island incidents. Some may have criticized this cartoon is way too simple to explain the current situation. However, it is still good as it is easy for anyone to understand by drawing these references.