SOVIET UNION: The Amerikanisti

Among the foreign observers visiting the U.S. this summer to view the political scene, one will look on with particular fascination. He is a suave, but tough Russian named Georgy Arbatov, who knows more about American politics than most Americans do and certainly more than any other Soviet citizen. A Communist Party Central Committee functionary with a doctorate in political science, Arbatov, 49, is now the Soviet Union's ranking America watcher.

As director of the four-year-old U.S.A. Institute of the Soviet Academy of Sciences, Arbatov heads a think tank of approximately 80 so-called...