“Using Chernobyl has a guide, there will be no clean up of the melted fuel in your lifetimes.”
Unlike Russia, Japan has an economy - a high tech one, with robots.
The latest humongous contraption to cover and begin disassembling the Chernobyl Unit 4 has the US helping foot some of the bill. Cranes and equipment will be remote controlled. In another 50 years they might be able to find all the corium and begin removing it to containers for storage.