This is the story of the Chernobyl disaster as well. There had been two similar accidents preceding it, in 1975 at the Leningrad NPP and in 1983 at the Ignalina

This is the story of the Chernobyl disaster as well. There had been two similar accidents preceding it, in 1975 at the Leningrad NPP and in 1983 at the Ignalina NPP. Only after the second one the design flaws were well understood, but they weren't fixed in the following years.