Hiroaki Koide, nuclear reactor specialist and Assistant Professor at Kyoto University’s Nuclear Research Institute:
The problem right now is not figuring out what the cause of the explosion [at Unit 3] is, but where in the world is the melted nuclear material that is in the plant right now?
Unfortunately we have no way of figuring this out…
We can’t go in and look… there’s nothing we can do at this point…
Like I said we have no idea where the melted nuclear core is at this point…
