<prompt> Qedela umusho olandelayo: UHill wachuma ngasekupheleni kwawo-1970, ngokwengxenye ngenxa yokwanda kwemisebenzi yokwakha yasendaweni eyayixhaswa yi-United States Environmental Protection Agency EPA eyayisanda kumiswa. I-EPA yayidinga ukusetshenziswa kwe-Federal Acquisition Regulation futhi izicelo njenge- Requests for Equitable Adjustments zaba yisilinganiso esisha sokuthengwa kwempahla kwasendaweni. Le nkampani yayinabasebenzi abangaba ngu-20 besikhathi esigcwele ekupheleni kuka-1979. Ngo-1980 le nkampani yavula ihhovisi layo lokuqala legatsha eWashington, DC, futhi yaqala ukusebenzela uhulumeni wase-US kanye nosonkontileka bakahulumeni kusuka kule ndawo. Ngawo-1980 olunye uchungechunge lwezehlakalo embonini yezokwakha lwandisa ukwanda kwezimangalo zokwakha nokukhula kweHill - ukwakhiwa kwezitshalo eziningi zamandla enuzi. Ukwakhiwa kwalezi zitshalo kwakulawulwa kakhulu futhi kwaphumela ekweqeni izindleko nasesimisweni cishe kuzo zonke izitshalo ezakhiwe. Izitshalo ezingaphezu kuka-46 zaqaliswa ukusebenza ngawo-1980 kuphela. Ngalesi sikhathi, i-Nuclear Power Generating Industry yayisemaphethelweni okwanda okusheshayo ekwakheni izitshalo futhi yaqala ukuqeda amaphrojekthi amaningi. Lokhu kwehla kwase kuqalile kakade ngenxa yezingozi zenuzi  <response>: IThree Mile Island neChernobyl. Lokhu kwabangela ukwanda okusha kwezimangalo zokwakhiwa ngenxa yokweqiswa kwamashejuli nezindleko kanye nezimangalo zokuqedwa komsebenzi, kuhlanganise nezinkampani ezihlinzeka ngezinsiza, onjiniyela, nabakhiqizi bamapayipi enyukliya kanye nosonkontileka kanye nosonkontileka abangaphansi kwabo. Ngalesi sikhathi, uHill waletha uWilliam J. Doyle ukuba abheke ukukhula kwebhizinisi lezimangalo ezihlobene nezikhali zenuzi. UDoyle wayakhe inkampani encane yokwakha imishini yaba enye yezinkampani ezinkulu kakhulu zokwakha imishini ezweni, iGeneral Energy Resources, Inc., ibhizinisi layo eliyinhloko lalingukwenza izinkontileka ezincane emisebenzini yezitshalo zamandla enuzi. UDoyle wabe eseba yiSenior VP yeNorthrop Corporation ngaphambi kokuba abe yisikhulu esiphezulu seHill eqondisa umsebenzi omningi wezikhalazo zenuzi kanye namanye amaphrojekthi ayizigidi eziningi zamaRandi. 