Plausible; also marginal. We already knew that Edward Teller made these kinds of accusations against a lot of people and thereby did much greater harm.
Teller would misspell Fermi and Fuchs' names ? That would be strange.
Counterpoint: nomative determinism.
nominative
The joke, that was.
Are you alleging that the FBI interviewer unknowingly interviewed Teller who was posing, with a high degree of skill, as a woman known to be closely associated with Feynman?
Because the FBI interviewer refers to the interviewee with feminine pronouns.
admittedly it would be really funny if Teller could just do that
Would Teller have had to mail Hoover though? Or just let the concerned people know that Feynman was unsuitable.