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Upstream collection

Upstream collection is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Upstream collection rather than just read about it. In short: Upstream collection is a term used by the National Security Agency (NSA) of the United States for intercepting telephone and Internet traffic from the Internet backbone, meaning major Internet cables and switches, both domestic and foreign. Besides the Upstream collection, NSA also gathers information from Internet communications through arrangements with Internet companies under the program codenamed PRISM.

Upstream collection — main illustration
Upstream collection — illustration

Key takeaways

  • Upstream collection belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Upstream collection to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Upstream collection from memory before moving on to harder problems.

Reference excerpt

Upstream collection is a term used by the National Security Agency (NSA) of the United States for intercepting telephone and Internet traffic from the Internet backbone, meaning major Internet cables and switches, both domestic and foreign. Besides the Upstream collection, NSA also gathers information from Internet communications through arrangements with Internet companies under the program codenamed PRISM. Both the Upstream programs and PRISM are part of the Special Source Operations (SSO) division, which is responsible for collection in cooperation with corporate partners.

Programs One of the slides of a presentation about the PRISM program describes Upstream as "collection of communications on fiber cables and infrastructure as data flows past" and says the Upstream collection is conducted under the following four major surveillance programs:

FAIRVIEW BLARNEY STORMBREW OAKSTAR The FAIRVIEW, BLARNEY and STORMBREW programs are for collecting data at facilities in the United States, whereas OAKSTAR is an umbrella for eight different programs used for collection outside the US. Under all four programs, the collection takes place in cooperation with commercial telecommunication companies, both inside and outside the US. Upstream collection programs allow access to very high volumes of data. According to one anonymous official speaking to a Wall Street Journal reporter, first, a pre-selection is done by the telecommunication providers themselves, who select traffic (including the text of emails and the audio of telephone calls) that most likely contains foreign communications. Then the data is passed on to the NSA, where a second selection is made by briefly copying the traffic and filtering it by using so-called "strong selectors" like phone numbers, e-mail or IP addresses of people and organizations in which NSA is interested. However, William Binney, a former high-ranking NSA official who is now a whistleblower, publicly maintains that the NSA seeks to "collect it all" with minimal filtering. Internet data collected by Upstream programs can be processed and searched through the XKEYSCORE indexing and analysing system.

Operational details According to former and current US government officials, there are more than a dozen major US based Internet switching stations where this kind of filtering takes place, which is not only near the sites where the main undersea Internet cables enter the US. One of the devices used to filter the Internet traffic is the Semantic Traffic Analyzer or STA 6400 made by Boeing subsidiary Narus. For collection of data from Internet cables and switches outside the United States, the NSA also has secret agreements with foreign Internet providers, especially in Europe and the Middle East. The costs for this cooperation made by these companies are paid by NSA under its Corporate Partner Access program, just like the expenses of the American telecommunication companies. The total costs for this program were estimated at 278 million US dollars for the fiscal year 2013. Upstream collection is conducted under four different legal authorizations:

EO 12333 Transit FISA FAA In a Foreign Intelligence Surveillance Court (FISC) order from October 3, 2011, it was said that the Upstream collection accounts for approximately 9% of the total number of 250 million Internet communications which NSA collects under the authority of section 702 FAA every year. During the first half of 2011, NSA acquired some 13.25 million Internet communications through Upstream collection. Although this is a relatively small amount, the order says Upstream collection is significant because it contains certain types of valuable foreign intelligence information, it still involves the collection of millions of Internet communications each year, and it is impossible for NSA to exclude domestic communications being collected due to technical difficulties.

Legal claims

On March 10, 2015, the American Civil Liberties Union sued the United States Department of Justice and the National Security Agency (NSA) against the NSA massive online surveillance, claiming that "the surveillance exceeds the scope of the authority that Congress provided in the FISA Amendments Act of 2008 (“FAA”) and violates the First and Fourth Amendments." The lawsuit was not heard, like other previous analogue complaints, and the first debate was postponed to October due to lack of standing. The decision was appealed by the Wikimedia Foundation who led other eight organizations. This case was dismissed on February 21, 2023.

Related media

See also Mass surveillance Targeted surveillance Global surveillance disclosures (2013–present)

References

External links Top Level Telecommunications: Slides about NSA's Upstream collection

Illustrations

Upstream collection illustration
Upstream collection illustration
Upstream collection illustration
Upstream collection illustration
Upstream collection illustration

Worked examples

Example 1 — a first encounter with Upstream collection

Start with the simplest possible case. Write down what Upstream collection claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Upstream collection before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Upstream collection ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Upstream collection

In research
Upstream collection appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Upstream collection in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Upstream collection is common in secondary-school and first-year university syllabi. It links to neighbouring topics Espionage, Internet privacy, Mass surveillance, so understanding it makes those chapters shorter.
In everyday life
Look for Upstream collection outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Upstream collection in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Upstream collection means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Upstream collection out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Upstream collection in simple terms?

Upstream collection is a term used by the National Security Agency (NSA) of the United States for intercepting telephone and Internet traffic from the Internet backbone, meaning major Internet cables and switches, both domestic and foreign. Besides the Upstream collection, NSA also gathers informat…

Why does Upstream collection matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Upstream collection?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Upstream collection.

Tags

  • Espionage
  • Internet privacy
  • Mass surveillance
  • National Security Agency

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