From articles in Japan Times-
Japan is re-evsluating is energy plans, but no new policy will be agreed upon for some time.
The current basic energy plan, June 2010, called for nuclear power to be the "core source of energy in the medium and long term," and outlined a program of at least 14 new reactors by 2030, with nine slated for completion by 2020.
Following the disaster at the Fukushima plant at Tohoku, local communities may not agree to host new plants.

Since there is no alternative, abandoning atomic energy seems to be unrealistic. More thermal plants have been suggested, but lead-in time is about ten years.

Both the Japan Times and the New York Times carry finger-pointing articles, as academics and scientists point to missed or ignored indicators of large tsunamis on the part of both government and energy companies.

Both surface, and as far as I can determine from sketchy groundwater info on the net, groundwaters in this part of Tohoku carry runoff to the sea.
Tepco is criticized for conflicting radioactivity measurements, but with damaged instruments at critical points, it is hard to get accurate data.

NISA's Nishiyama said the levels of radioactive iodine at reactor no. 2, 1000 millisieverts/hour and more, definitely indicate a nuclear fission source, but he believes that the core and containment vessel are still intact and that the radioactive water may be seeping from damaged pipes and valves.