It's quite remarkable how few accidents happened, at least lately: only 3 events in the last 3 decades. Throughout this period the US and Russia had a combined

It's quite remarkable how few accidents happened, at least lately: only 3 events in the last 3 decades. Throughout this period the US and Russia had a combined number of nukes always in excess of 10000, and more than 100 naval nuclear reactors, and many, many nuclear facilities for R&D, for nuclear enrichment, for nuclear disposal and who knows what else.