I read his comment and I can't say that I disagree with his assessment given the amount of information that we have. I spent some time on a US nuclear warship

I read his comment and I can't say that I disagree with his assessment given the amount of information that we have. I spent some time on a US nuclear warship and he's probably got some nuclear engineering background. Right now, my main concern is the release of Caesium-137. If that has been detected, then there is a solid chance that the core has been at least partially exposed. Caesium-137 has a half-life of 30 years and is a gamma emitter. It's also water-soluble. Not a good combination.