Do you realize that a single reprocessing plant releases more than 10x more tritium in the ocean yearly than the amount currently contained at Fukushima? This has been happening safely for decades, under constant monitoring for impact on fish and other ocean life. The whole recent "Fukushima tritium release" news cycle is entirely FUD, and all nuclear safety experts agree that there is basically no risk involved. Please stop propagating the FUD.
Reprocessing plants are indeed much worse than nuclear power plants in terms of day-to-day radioactive release and many other safety aspects - which is why I get a little perplexed when nuclear proponents keep on pushing them as the solution to the nuclear waste problem. It's only waste because we foolishly don't use it as fuel, they say, but the processes for doing that are an absolute disaster (and also a nuclear weapons proliferation risk to boot).
They want to dump a tiny, tiny fraction of the radioactive material released from Fukushima. The water that they cooled the busted cores with picked up all sorts of crap, and they filtered out most of it. Tritium is really hard to remove though, so the cost/benefit ratio there is way higher than would justify removing it.