A focus of the engineering efforts at Chernobyl and Fukushima are to make sure that higher risk contamination is avoided. So the current radiation impact is no

A focus of the engineering efforts at Chernobyl and Fukushima are to make sure that higher risk contamination is avoided. So the current radiation impact is not the issue. It is the potential impact that is addressed. I hope that one day Chernobyl and Fukushima can be repopulated, and agree that may be safe. I don't think that makes any difference to the actual cost of the event. Nor, would it be wise to presume that a subsequent event could be safely handled without an evacuation. But that is one for politicians to decide.