In relation to computers, in information management and on communications networks, a name or label used as an alternative means of referring to someone or something. On networks, where they are commonly encountered, aliases identify both individuals and groups of people with a common interest. Group aliases are particularly useful because a message addressed to the alias reaches each person in the group, simplifying the task of distributing information to multiple recipients. ("Alias," Microsoft® Encarta® Encyclopedia 99. © 1993-1998 Microsoft Corporation. All rights reserved.)

Central Intelligence Agency (CIA), agency of the Executive Office of the President of the United States, created in 1947, together with the National Security Council. The CIA is America's first permanent peacetime intelligence agency responsible for keeping the government informed of foreign actions affecting the nation's interests. It was established by the National Security Act of 1947 and is charged with coordinating all U.S. intelligence activities, as well as such functions and duties related to intelligence as directed by the National Security Council. A director and deputy director of the agency are appointed by the president with the consent of the Senate. ("Central Intelligence Agency," Microsoft® Encarta® Encyclopedia 99. © 1993-1998 Microsoft Corporation. All rights reserved.)