Kammala wannan jumla: A ranar 28 ga Maris, 1979, lalacewar kayan aiki da kuskuren mai aiki ya ba da gudummawa ga asarar mai sanyaya da kuma narkewar ɓangaren ɓoye na rukunin ruwa mai matsin lamba na Unit 2 a
Gidan Wutar Lantarki na Nukiliya na Three Mile Island a Pennsylvania. Matsayi da rikitarwa na wannan hadarin reactor ya zama bayyananne a cikin kwanaki biyar, yayin da hukumomi da yawa a matakin gida, na jihohi da na tarayya suka yi kokarin magance matsalar da yanke shawara ko hadarin da ke gudana ya buƙaci ƙauracewar gaggawa, kuma zuwa wane mataki.