The only two Level 7 nuclear events in the world — Chernobyl and Fukushima Daiichi — have have rendered large swaths of land unusable for a significant amount of time. Whether or not the exclusion zones surrounding these two areas need to be as large as they are can be argued. However, when a hydroelectric dam fails more people die initially, but as the cleanup happens and the reporters fade away, the event fades into the background. With nuclear incidents people are persistently reminded whether through apocalyptic movies or people going into the exclusion zones to photograph the ruins that are left behind.