While much of this information must remain secret, significant amounts of government information on intelligence activities can be obtained from printed sources and the Internet. Purdue Libraries have many government documents on intelligence with most of these being located in the HSSE Library. The principal index for U.S. Government documents is the GPO on SilverPlatter CD-ROM near the HSSE Reference Desk. U.S. Government publications from 1976 to the present and its print counterpart is Monthly Catalog of U.S. Government Publications HSSE REF 016.353 Un36. U.S. Government publications can also be searched in the GPO section of FirstSearch accessible in HSSE and other Purdue libraries.
Congressional publications are also excellent sources of intelligence information.
Internet Resources Increasing volumes of government information can be found on the Internet including that dealing with intelligence.