12 years later
"TEPCO visually confirms melted nuclear fuel at Fukushima plant"
Human beings still cannot enter the buildings where the 3 full meltdowns occurred. Decommissioning will take more than 100 years.
"A robotic study provided the first visual confirmation that melted nuclear fuel broke through a pressure vessel at the Fukushima No. 1 nuclear power plant, the government and Tokyo Electric Power Co. said March 30.
The inspection by the robot started on March 29. It was the first such study at the No. 1 reactor, one of the three reactors that melted down at the plant following the Great East Japan Earthquake and tsunami in 2011.
More than 90 percent of the nuclear fuel at the No. 1 reactor is believed to have fallen from the pressure vessel.
The robot found a large amount of melted fuel debris under the pressure vessel."