Later, he taught courses in Russian history at West Point, New York, and while serving at the United States embassy in Moscow in the early 1970s, he visited all of the republics of the Union of Soviet Socialist Republics.
Belakangan, ia mengajar mata-mata kuliah dalam sejarah Rusia di West Point, New York, dan sementara bertugas di kedutaan besar AS di Moskwa pada awal 1970-an, ia mengunjungi semua republik dari Uni Soviet.