Follow
There are ~450 civilian nuclear reactors working all around the world as we speak.
Over the last 50 years there were *two* serious nuclear accidents among these 450 reactors.
One in a 70's military 1st gen RBMK reactor in USSR that was put into melt-down by violating all safety procedures.
Another one in 70's 2nd gen reactor in Japan built in a active seismic zone.
So yes, these two were statistically expected.