This is part of a massive clean up that’s expected to cost nearly $200 billion and take decades.
Lesley Stahl: Has anything like this cleanup, in terms of the scope, ever happened before?
Lake Barrett: No, this is a unique situation here. It’s never happened in human history. It’s a challenge we’ve never had before.
Lesley Stahl: So how long will it be lethal?
Lake Barrett: It will be lethal for thousands of years.
Lesley Stahl: What we’re talking about really is three meltdowns?
Lake Barrett: Yes. It was truly Hell on Earth.