Among the most knowledgeable experts on the Venona project is Harvey Klehr, a professor of politics and history at Emory University. Prof. Klehr traveled in 1992 to the former Soviet Union, where he got access to Soviet spy archives. He also studied the Venona cables after the U.S. government declassified them in the 1990s. With John Earl Haynes, Prof. Klehr co-authored Venona: Decoding Soviet Espionage in America, published in 1999 by Yale University.
In short, when it comes to Soviet espionage in America, the Venona project and Joseph McCarthy, Prof. Klehr has the credentials to show that he knows what he’s talking about. In fact, he is very critical of those who still deny the extent of that espionage or downplay its significance.
But he isn’t buying efforts to rehabilitate McCarthy’s image. Prof. Klehr told an audience at a 2005 conference that McCarthy may have been right about “some of the larger issues” — such as, that there actually were communist spies in America — but that he was recklessly wrong on much else, especially the details:
[V]irtually none of the people that McCarthy claimed or alleged were Soviet agents turn up in Venona. He did identify a few small fry who we now know were spies but only a few. And there is little evidence that those he fingered were among the unidentified spies of Venona. Many of his claims were wildly inaccurate; his charges filled with errors of fact, misjudgments of organizations and innuendoes disguised as evidence. He failed to recognize or understand the differences among genuine liberals, fellow-traveling liberals, Communist dupes, Communists and spies — distinctions that were important to make. The new information from Russian and American archives does not vindicate McCarthy. He remains a demagogue, whose wild charges actually made the fight against Communist subversion more difficult. Like Gresham’s Law, McCarthy’s allegations marginalized the accurate claims. Because his facts were so often wrong, real spies were able to hide behind the cover of being one of his victims and even persuade well-meaning but naïve people that the whole anti-communist cause was based on inaccuracies and hysteria.
http://tfninsider.org/2009/10/29/reh...seph-mccarthy/