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Chernobyl was/is buried under a massive concrete sarcophagus.
I know that back in March, some people were talking about doing the same thing in Japan.
Back then, the Japanese authorities were saying that it was too early to start thinking about long term measures.
The Chernobyl sarcophagus wasn't designed to last more than 20 to 30 years.
And the Chernobyl structure now has huge holes and fissures.

Let's hope the experts can get the Japanese situation under control.
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Do not argue with an idiot. He will drag you down to his level and beat you with experience.