> Nuclear contamination can be cleaned. The majority of the Fukushima exclusion zone has been cleaned and reopened. There's no motivation to do this in Chernobyl because the town of Chernobyl only existed to support the nuclear power plant.

And somewhat oddly he Chernobyl Exclusion Zone literally shows that nuclear accidents are good for the environment, as human activity turns out to be way worse for wildlife than elevated radiations.