Harold James Nicholson (born in 1950) is a former Central Intelligence Agency officer, who in 1997 was convicted of selling U.S. intelligence to Russia for $180,000 and was sentenced to 23 years in prison. CIA officials believe that he sold the identities of all the U.S. spies in Russia. Although his case received far less publicity than that of Aldrich Ames, and apparently caused less damage to U.S. national security, Nicholson was the highest ranking CIA official ever convicted for spying for a foreign country.
