National Security Agency surveillance
Map of global NSA data collection as of 2007[update], with countries subject to the most data collection shown in red
Programs Pre-1978 ECHELON MINARET SHAMROCK PROMIS Since 1978 Upstream collection BLARNEY FAIRVIEW Main Core ThinThread Genoa Since 1990 RAMPART-A Since 1998 Tailored Access Operations Since 2001 OAKSTAR STORMBREW Trailblazer Turbulence Genoa II Total Information Awareness President's Surveillance Program Terrorist Surveillance Program Since 2007 PRISM Dropmire Stateroom Bullrun MYSTIC Databases, tools etc. PINWALE MARINA Main Core MAINWAY TRAFFICTHIEF DISHFIRE XKeyscore ICREACH BOUNDLESSINFORMANT GCHQ collaboration MUSCULAR Tempora
Legislation Safe Streets Act Privacy Act of 1974 FISA ECPA Patriot Act Homeland Security Act Protect America Act of 2007 FISA Amendments Act of 2008
Institutions FISC Senate Intelligence Committee National Security Council
Lawsuits ACLU v. NSA Hepting v. AT&T Jewel v. NSA Clapper v. Amnesty Klayman v. Obama ACLU v. Clapper Wikimedia v. NSA US v. Moalin
Whistleblowers William Binney Thomas Drake Mark Klein Thomas Tamm Russ Tice Edward Snowden
Publication 2005 warrantless surveillance scandal Global surveillance disclosures (2013–present)
Related Cablegate Surveillance of reporters Mail tracking UN diplomatic spying Insider Threat Program Mass surveillance in the United States Mass surveillance in the United Kingdom
Concepts SIGINT Metadata
Collaboration United States CSS CYBERCOM DOJ FBI CIA DHS IAO Five Eyes CSEC GCHQ ASD GCSB Other DGSE BND
v t e

BLARNEY is a communications surveillance program of the National Security Agency (NSA) of the United States. It started in 1978, operated under the Foreign Intelligence Surveillance Act^[1][2] and was expanded after the September 11 attacks.^[3]

The collection takes place at top-level telecommunications facilities within the United States, choke points through which most traffic will flow, including wireless. This type of surveillance is referred to as Upstream collection.

BLARNEY was first brought to public view in a PRISM slide revealed by Edward Snowden.^[2] The FY 2013 budget for BLARNEY was $65.96 million.^[4]

Initially it was assumed that BLARNEY was the program under which the NSA cooperated with AT&T and that among the tapping facilities were AT&T's Room 641A in San Francisco, California, revealed in 2006 by Mark Klein, and another in New Jersey.^[3] However, new NSA documents released on August 15, 2015 show that the cooperation with AT&T takes places under FAIRVIEW, and that Room 641A is probably part of that program, instead of BLARNEY.^[5]

The new documents about FAIRVIEW also show that this isn't a larger umbrella program comprising BLARNEY, OAKSTAR, STORMBREW and others, as was said by Thomas Drake. Those programs are very similar, but associated with different companies, and may have slightly different legal arrangements with the NSA. Arrangements with corporations are associated with the NSA's Special Source Operations division (SSO).^[5][6]

BLARNEY operates under three legal authorities: NSA FISA, FBI FISA and section 702 FAA. Collection of data under the FISA authority requires a court order from the FISA Court (FISC) in which the identifiers ("selectors") for the target are mentioned. The legal process to acquire a court order can be expedited and approved within 2 days. ^[7] BLARNEY collection under the FISA authority is the main contributor to the President's Daily Brief and accounts for over 11,000 product reports a year. ^[8]

To gather intelligence, algorithms are used to sift through the communications, and forward on, for storage and possible analysis, those which are believed likely to contain foreign intelligence. The first stage of filtering is done by the telecoms themselves, at the request of the NSA. The filters are not always perfect, and sometimes purely domestic communications are caught.

In the event that domestic communications are swept up, the minimization procedures are applied. The procedures require that most "incidental" communications between U.S. persons be destroyed, with a few exceptions.^[9] The exceptions include: the content is encrypted, it contains foreign intelligence, or is evidence of a crime. This last exception allows the NSA to pass to the Drug Enforcement Administration's Special Operations Division (SOD) information relating to drug trafficking. The program has been likened to Project SHAMROCK, in which the NSA, and its predecessor organization were given daily microfilm copies of all telegrams entering and exiting the United States.^[3]

BLARNEY is known to be associated with two SIGADs of the same name.^[1] The designation for PRISM (US-984XN) is very similar to the designations of the BLARNEY SIGADs: US-984 and US-984X.^[1][2] Accordingly, the speaker's notes of an NSA presentation that was released on August 15, 2015, say that "PRISM falls under BLARNEY, but is just one access of many".^[8]

Note: SIGADs not otherwise designated are presumed to operate under the legal authority of Section 702 of the FISA Amendments Act (FAA)

Glossary

• DNI: Digital Network Intelligence.^[10]
• DNR: Dial Number Recognition.^[10]
• Transit authority: A legal authority that states communications that transit the United States are collectible, provided that both endpoints are foreign.

• 
  Upstream: Map of International Cables
• 
  Upstream: Transit Authority
• 
  Upstream: Map of Transit Authority
• 
  Upstream: Unique Aspects
• 
  Upstream: Corporate Portfolio
• 
  Blarney at a Glance
• 
  Blarney at a glance (readable version)
• 
  Blarney SIGAD
• 
  Blarney chart - top 10 collection SIGADs

• 2013 mass surveillance disclosures