On October 16, 2009 the New York Times published an article by Scott Shane examining the role of CIA agent George E. Joannides, who was charged with overseeing an anti-Castro Cuban group in the 1963. In 1978, the agency made Mr. Joannides the liaison to the House Select Committee on Assassinations — but never told the committee of his earlier role. That concealment has fueled suspicion that Mr. Joannides’s real assignment was to limit what the House committee could learn about C.I.A. activities. Mr. Joannides died in 1990, at age 68.

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