Ka cika wannan jumla: Binciken manyan haɗarurruka da suka shafi ɓangarori dabam dabam na jama'a sun nuna cewa kurakurai da ba a sani ba ne suke kawo haɗari mafi girma ga aminci a cikin tsarin da ya fi wuya. Irin wannan hadarin ya hada da:
Hatsarin tsibirin Three Mile Island, bala'in filin wasa na Heysel, bala'in Bhopal, bala'in Chernobyl, bala'in jirgin sama na "Challenger", King Cross wuta, "Piper Alpha", da MS "Herald of Free Enterprise".