Explaining the ongoing nuclear crisis to Japanese toddlers isn't very easy, so this video attempts to do it by replacing the technical jargon with things every little kid understands fully, especially poo.
In the video Nuclear Boy (the Fukushima plant) has a tummy ache, and the Doctors (nuclear workers) need to give him plenty of medicine (water) to keep him cool. They're also trying to figure out what to do with all of Nuclear Boy's stinky diapers full of poo (radioactive waste). The video ends by saying Nuclear Boy is starting to feel much better, which seems like quite a stretch if you've been following the news.
It's hard to imagine a video like this coming out in the US.