Cold War Legacy Ends as CIA Factbook Shuts Down
Factbook served researchers and students for over 60 years.
CIA created Factbook in 1971 to meet Cold War intelligence needs.
Factbook released publicly in 1975 amid CIA abuse investigations.
Isabel Altamirano removed Factbook from her class due to closure.
Final edition lists Ayatollah Khamenei as Iran's leader despite reported death.
Analysts criticize Factbook for lack of neutrality.