The NY Times as noted in an earlier post, discussed the problems with the General Electric venting system as noted by scientists.
Along with this was mentioned the problem of supplying power to this and other functions in a reactor affected by quake, tsunami or other disaster.

Redundant power supply systems are necessary, but all may be disrupted by unforseen disaster.

This leads to the question, is nuclear power engineering not yet capable of insuring safety? I know what Charley's answer would be, and it is also becoming mine.