Comment by Renaud

Accusing someone of communism in those witch-hunting days was a dangerous thing to do. It seems a bit improbable that Feynman would have done that to himself, knowing that it could jeopardise his participation in other committees/projects/areas that were of interest to him. He wasn't 'forced' to be on the PSAC, it's not like he was trying to get away from jury-duty. He could just as well have said he wasn't interested/able do participate when asked to join.

To me, it would also have seemed a bit out of character, Feynman has demonstrated that he had no big problem speaking his mind, so stealing someone's identity, with the legal risks that represents, especially if it was his estranged wife's, doesn't sound very probable.

But hey, I don't know, I guess I see it as improbable but it's always possible.