The Fukushima incident shouldn't really be compared with the Chernobyl incident. Chernobyl was very preventable. As for Fukushima, the earthquake science didn't realize that such a quake was possible in the region until pretty close to the event happening, meaning little time to act in it. While people will point out early reports and hypothesis, that's not how science works. We need to peer review. The science has come a long way since then (specifically from computational modeling), but that's different from building reactors with the potential to explode (something the west didn't do) and pushing it's bounds (even if we didn't know about xenon spiking at the time).