Skip to main content

National Security Agency (NSA)

  • Living reference work entry
  • First Online:
Encyclopedia of Big Data

The National Security Agency (NSA) is the US governmental agency responsible for collecting, processing, analyzing, and distributing signal-based intelligence information to support military and national security operations, as well as providing information security for US governmental agencies and its allies. Alongside the Central Security Service (CSS), which serves as a liaison between the NSA and military intelligence-gathering agencies, the NSA/CSS serves as 1 of 17 intelligence agencies in the American government, reporting equally to the Department of Defense and the Director of National Intelligence. Its central mission is to use information gathered through surveillance and codebreaking to support the interests of the United States and its allies.

The NSA has become the center of a larger debate over the proper extent of state surveillance powers in balancing both national security and civil liberties. As the world has become increasingly globalized, and as cultural expression...

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Institutional subscriptions

Further Readings

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Doug Tewksbury .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2017 Springer International Publishing AG

About this entry

Cite this entry

Tewksbury, D. (2017). National Security Agency (NSA). In: Schintler, L., McNeely, C. (eds) Encyclopedia of Big Data. Springer, Cham. https://doi.org/10.1007/978-3-319-32001-4_143-1

Download citation

  • DOI: https://doi.org/10.1007/978-3-319-32001-4_143-1

  • Received:

  • Accepted:

  • Published:

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-32001-4

  • Online ISBN: 978-3-319-32001-4

  • eBook Packages: Springer Reference Business and ManagementReference Module Humanities and Social SciencesReference Module Business, Economics and Social Sciences

Publish with us

Policies and ethics