This will probably be a horrible mess for many, many years until we develop some sort of super technology to just get it under control. Maybe robots that can withstand extreme radiation and heat? Why do I have the feeling that the worst is yet to come?
With demographics indicating to the Japanese that there will not be enough young people to care for their aging population, much of their robot technology developments have focused on robots that can care for the elderly. They are Japanese built robots in use at Fukushima but they struggle to function and are often reported as “dying” in high radiation areas.
The nuke industry is not interested in developing radiation disaster technology - they are always clamoring for more money and new plants that they imagine will be perfectly safe, just like they used to say the destroyed plants were perfectly safe. Historically, the nuke industry promises perfection, denies failure, ignores ongoing evidence (just ask them about health issues in the Ukraine...crickets), blames the innocent (yes - they think it’s our fault), and begs for shiny new technology. You know, it’s like nuclear power is literally their self image.