Well it is a bogus to say that the Nuclear power is somehow safe. It is far from it, it is the worst form of power considering the risks involved. Half of the Europe is still radiating (down fall by high altitude wind) from Chernobyl. Even my hunting cabin 1600 km (1000miles) from Chernobyl have local hot-spot (long-range downfall scale). Bad thing about it that it accumulates to fish, mushroom, berries and a like. No other power source will share a such potential to turn whole continents to places that are unsuitable for living with one failure of technology.
Then there is the decomissioning, which share similar threads since the waste is highly toxic/radiating for next 10000..100000 years. We have had a periodic table about 150 years and english language less than 1500 years to put the time on perspective.
Chernobyl did couse direct or indirect death from tens to hundreds of thousands of people on former Soviet Union and Warsaw pack, but because of the nature of the USSR the then relevant downfall etc. figures were cleaned out (as were any other unpleasant fact). USSR did not even inform or admit the meltdown to the Europe, not until sensors on Stockholm Sweden (900 miles away from Chernobyl) did notice it. The hot cleaning were done by 200 000 soldiers, who weren't even properly informed where and what they were doing. The radiation on ground were such strong on the cleaning site that the film did overexpose inside of the cameras. Still going on water contamination is unsolved.(A bit old news flash about it:
http://www.independent.co.uk/news/chernobyl-leak-threatens-to-poison-ukraine-water-supply-1154021.html ) Mechanical (not soldiers) robots they then used on site were similarly failing as those are in Fukushima hot spots.
There is other hazards and we have been really good at poisoning our backyards for last 150 years or so, unfortunately many times with substances that are bioaccumulating and non biodegradable.
Now agriculture is also potential source of nuclear contamination, many phosphorous fertilisers have high amounts (in sense that it is put on our food sources) of nuclear material ( Uranium ). The total amount (metric tons) of uranium dispersed yearly to fields only in Germany were jaw dropping (no pun).
What comes to preventing human error and bad judgement on disaster preventing safety system, the floodgate control system of Port of Rotterdam is interesting concept (as there is no human involved on decision making).
We are living over of our resources that is the reason for many if not most of the problems we are facing globally.