(TEXT FROM THE CIA FACTBOOK ON INTELLIGENCE) The National Intelligence Council, managed by a Chairman, a Vice Chairman, and a Director for Evaluations, is comprised of National Intelligence Officers--senior experts drawn from all elements of the Community and from outside the Government. The National Intelligence Officers concentrate on the substantive problems of particular geographic regions of the world and of particular functional areas such as economics and weapons proliferation. They serve the DCI in his role as leader of the Intelligence Community by producing National Intelligence Estimates. These officers work closely with policymakers and serve as personal staff officers and senior advisers to the DCI in their respective areas of functional or regional responsibility.