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1950, they departed via Sarant's automobile for Tuscon, Arizona. On August 8, 1950, they were drive across from Tuscon into Mexico by a relative of Mrs. Dayton's. Efforts to locate Sarant and Carol Dayton in Mexico have failed to date. It is know that they traveled from Guaymas by air to Guadalajara on August 12, 1950. The facts developed concerning Sarant had been furnished to the Criminal Division of the Department, but no process is outstanding for the arrest of Sarant.

Clarke Fullerton Davis

David Greenglass has advised that he believes that one of Rosenberg's espionage contacts was a man who was employed as a $200 per day consultant on a huge dam project in Egypt. Efforts have been made to identify this individual. The dam project is undoubtedly the huge Aswan Dam Project on the Nile River. Information has been secured from both   and CIA to the effect that one Clarke Fullerton Davis has been a consultant at the Aswan Dan Project and is also working on a nitrate fertilizer project nearby. Davis, during the latter (illegible text) of 1950, has been in contact with   and American Intelligence officers in Cairo, Egypt, has made vague references to his ability to obtain information from the Soviet Embassy Cairo, and has offered his services in penetrating the Soviet Embassy. There is a good possibility that Davis is the espionage contact of Rosenberg described above. We have not established any connection between Davis and Rosenberg, and we do not have any importation indicating Communist activities or sympathies on the part of Davis. It is believed, however, that there is a strong possibility that in his contact with the intelligence authorities in Egypt he is attempting to place himself in a position where he can make a claim of cooperation at some latter date. This matter is being closely followed with both CIA and  .

Theodore A. Hall and Saville Sax

While not connected with the Rosenberg espionage network information from   does reflect atomic espionage activity on the part of Theodore A. Hall and his friend Saville Sax. The   information reflects that Hall, who had been a scientist and group leader at Los Alamos, had handed

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