BobS,

I agree, if it was a russian plant, the old gas variety, then I'd be plenty worried.

But there are plans for the Russians to upgrade and or decommission many of these older reactors, those that will be upgarded will be either the American Westinghose AP1000, or the European EPR 1700. Either one are extremely well thought out and are built on the collective experiences of previous generations of reactors.

The next generation (IVth) of reactors many well be experiments in untried technology, the safe guards will be considerable but there is always an element of the unknown with such experiments. Watch this space in 2017.