Fukushima reactor's radiation levels killed a cleaning robot
 

Tokyo Electric Power Co. (Tepco) wasn't kidding when it said the radiation levels inside Fukushima's nuclear reactor are the highest they've been since its meltdown in 2011. It had to pull out the robot it sent in to find the exact location of melted...

https://www.engadget.com/2017/02/10/...leaning-robot/