Cika wannan magana: Tsarin reactor wanda tsarinsa na "asali" mai aminci kai tsaye yana ba da "matsayin" aminci na "matsakaici" yayin takamaiman yanayin gazawar a cikin "duk" yanayin aiki ana bayyana shi azaman mai aminci ga wannan yanayin gazawar. Duk da haka mafi yawan halin yanzu ruwa-sanyaya da kuma moderated reactors, a lokacin da scrammed, ba zai iya cire sauran samar da bazuwar zafi ba tare da ko dai tsari zafi canja wuri ko aiki sanyaya tsarin. A wasu kalmomin, yayin da tsarin canja wurin zafin jiki mai aminci ya samar da wani abu mai aminci wanda ke hana zafi mai zafi yayin da reactor ke aiki, wannan tsari na canja wurin zafi mai aminci "ba ya" samar da wani abu mai aminci idan an kashe reactor (SCRAMed). Ƙungiyar
Hatsarin Three Mile Island ya fallasa wannan ƙarancin ƙira: an kashe mahaɗan da injin janareta amma tare da asarar mai sanyaya har yanzu ya sha wahala.