If you have a few hours to spare and you're curious to know what the CIA has been interested in over the past half century or so, the Freedom of Information Act (FOIA) Electronic Reading Room might be the site for you. Start on the homepage, where you can read about functionalities of the Reading Room and browse overviews of the FOIA, the Privacy Act, and Executive Order 13526, which clarifies the process of classifying and declassifying documents. Then, use the search engine to scout the site. For instance, a search for "UFO" turns up dozens of declassified documents, including a 1967 report about unidentified objects over Moscow. Searching "Cuba" returns hundreds of documents, including plans for the Bay of Pigs invasion.