<prompt> Bhala okuqhubekayo kwalesi sigaba - Ukuhlolwa kwebhomu lokuqala le-athomu yiSoviet Union ngo-August 1949 kwafika ngaphambi kwesikhathi amaMelika ayesilindele, futhi uMcMahon ngokushesha wanxusa ukuba ukukhiqizwa kwezikhali ze-athomu e-U.S. kwandiswe kakhulu. Ngaphezu kwalokho, phakathi nezinyanga eziningana ezalandela kwakunempikiswano evuthayo phakathi kukahulumeni wase - U.S., ezempi, nasemphakathini wezesayensi ngokuphathelene nokuthi kwakufanele yini kuqhubeke nokwakhiwa kwebhomu le - hydrogen elinamandla kakhulu, ngalesosikhathi elaziwa ngokuthi iSuper. UMcMahon wayevumelana ngokuqinile nokuqhubekela phambili noSuper, futhi wagomela kanjalo ochungechungeni lwezincwadi azibhalela uMongameli Truman. USenator wenqaba izimpikiswano ezisekelwe ekuziphatheni okulungile ngokumelene nebhomu le-hydrogen ngenxa yokuthi ngokwemvelo libhubhisa kakhulu kunezikhali zangaphambili, ebuza Uphi umehluko ofanele wokuziphatha phakathi kweMpi Yezwe II yokuqhunyiswa kwamabhomu eHamburg izinsuku eziningi nobusuku  <response>: , ukuqhuma kwebhomu lomlilo eToyko, nokuqhuma kwebhomu le-athomu eHiroshima, nanoma yikuphi ukuhlaselwa kwesikhathi esizayo nganoma yibuphi ubuchwepheshe obubangela ukulimala kwabantu abaningi. 