From what I understand is that they will pump saltwater straight into the reactor core if the normal cooling systems wont cool it enough.
If that happens it will never be able to startup again and the whole plant is a writeoff.
The building that houses the actual core is built underground so I guess that might help with containing the radiotion.

There are plans to build another nuclear powerstation overhere in Holland but I'm guessing the current situation doesnt help getting public support.
Better stick to windmills!