As I read your excellent work, I was thinking of the more recent spy/leaker (what ever) in the Democrat party, Jane Harmon. Apparently she is connected to AIPAC and the case of the US guy who leaked to the Israelis.
I recall Harmon's name coming up as linked to some of Tunney's associates--think she was his aide or something at one point a while back, but I need to double-check that.