When pressed on the issue in later interviews, Oppenheimer admitted that the only person who had approached him was his friend Haakon Chevalier, a Berkeley professor of French literature, who had mentioned the matter privately at a dinner at Oppenheimer's house.
En entrevistas posteriores Oppenheimer admitiu que a única persoa que lle pedira información a el persoalmente fora o seu amigo Haakon Chevalier, profesor de literatura francesa en Berkeley, quen mencionara o tema nunha cea privada na casa de Oppenheimer.