Watch NHK Documentary Season 21 Episode 6 Online
- COUNTRIES: Japan
- Subtitles: 日本語,English
8 years after the March 2011 disaster in northeastern Japan, experts continue to learn new truths about the devastating tsunami. At first, the tsunami was clear. But it soon turned dark and muddy. The black water turned out to be far more destructive and dangerous to people's health than normal seawater. We examined the deadly risks of the massive "black tsunami."
