::Addendum: Oshinsky says in the passage quoted above, that Latham, whose analysis he agrees with, was writing 40 years ago,  "Without the benefit of Venona or Soviet archives"  "Soviet archives" refers to the material Vassiliev was allowed partial access to, does it not? Vassiliev was seeking proof that Hiss was ALES in Soviet archives. If Prados is to be believed even the FBI who identified Hiss as ALES were not sure that this was correct.