After several accidents and scandals linked to Japanese nuclear industry in the recent years, TEPCO (Tokyo Electric Power Company) stopped the last of its 17 reactors yesterday for security checks.
Apparently they will need at least 10 reactors up and running this summer to cover Tokyo needs (when all air-conditioners will be up). Alternative power sources should not be enough.

A chronology of the most serious accident (Tokaimura, Sept 1999) can be found here, and here. The Open Directory Project has also a list of articles about this incident.

It is really scary...

The good point is that we could have a 2 months holidays this summer ;-)