Japan May Encase Reactors in Sand and Concrete

Apparently, Japanese engineers are considering the possibility of encasing the Fukushima Daiichi reactors in sand and concrete (the Chernobyl method), though they are still trying to regain control of the situation by other means. I suspect that sealing up the reactors may prove a monumental task, given the radiation levels involved, and related risks, but given tactics such as the one's I suggested here, materials could probably be dumped in large quantities on the site -- perhaps enough initially to allow properly garbed workers to approach on the ground and handle some tasks by more economical means.

We shall see.