Underwater robot finds melted fuel from Fukushima

Posted: 20th November 2017

This report describes recent progress in locating the melted fuel from the Fukushima meltdown.

https://www.nytimes.com/2017/11/19/science/japan-fukushima-nuclear-meltdown-fuel.html

The release of these images is said to be aimed at reassuring the public that things are under control.  You will no doubt draw your own conclusions.