The China Syndrome, released 12 days before Three Mile Island accident shows the fragility of Nuclear Power and humans who work with it, but electrical energy is the cornerstone of economic development. Fukushima Daiichi nuclear disaster is another well-documented accident.
World energy consumption shows Coal and Oil, together, supply 60+% of total energy, while Nuclear is about 4%.
Chain reactions are very hard to control, and this is one of toughest to control, despite technological leaps in the last 40+ years. Safe Nuclear and Renewables would be very nice in the next 10+ years.