As a correspondent for ABC, Scali became an intermediary during the Cuban Missile Crisis and later a part of the Nixon Administration. Scali gained fame after it became known in 1964 that in October 1962, a year after he joined ABC News, he had carried a critical message from KGB Colonel Aleksandr Fomin (the cover name for Alexander Feklisov) to U.S. officials. He left ABC in 1971 to serve as a foreign affairs adviser to President Nixon, becoming U.S. Ambassador to the United Nations in 1973.