Intelligence Activities and the Rights of Americans: Excessive Use of Intrusive Techniques [open pdf - 125KB]
"The intelligence community has employed surreptitious collection techniques -- mail opening, surreptitious entries, informants, and 'traditional' and highly sophisticated forms of electronic surveillance -- to achieve its overly broad intelligence targeting and collection objectives. Although there are circumstances where these techniques, if properly controlled, are legal and appropriate, the Committee finds that their very nature makes them a threat to the personal privacy and constitutionally protected activities of both the targets and of persons who communicate with or associate with the targets. The dangers inherent in the use of these techniques have been compounded by the lack of adequate standards limiting their use and by the absence of review by neutral authorities outside the intelligence agencies. As a consequence, these techniques have collected enormous amounts of personal and political information serving no legitimate governmental interest."
Intelligence Activities and the Rights of Americans - Book II (1976)