Thursday, August 1, 2013

Senators Question the NSA

Senate Panel Presses N.S.A. on Phone Logs

Christopher Gregory/The New York Times

eaders’ Comments

The intelligence analysts search for terrorist cells by looking at “anomalous events” — someone searching in German from Pakistani sites, or an Iranian sending an encrypted Microsoft Word file. But one slide says the system can be used to identify anyone “searching the Web for suspicious stuff.”

Documents Declassified N.S.A. Documents on Data Collection

Read and search three documents related to the National Security Agency’s collection of phone records.

Related in Opinion

Editorial: More Fog From the Spy Agencies (August 1, 2013)
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Readers’ Comments

The presentation says the system enables analysts to identify and pursue leads even if they do not yet know the name, or the e-mail address, of a suspect. “A large amount of time spent on the Web is performing actions that are anonymous,” it explains.
One example of how analysts might use the system is to search for whenever someone has started up a “virtual private network” in a particular country of interest; the networks are pipelines that add greater security to online communications. N.S.A. analysts are able to use the system to extract the activity retrospectively from “raw unselected bulk traffic,” the documents say, and then decrypt it to “discover the users.”
The agency said its surveillance of the Internet was part of its “lawful foreign signals intelligence collection” and not “arbitrary and unconstrained.” The chairman of the House Intelligence Committee, Representative Mike Rogers, and the ranking Democrat, C. A. Dutch Ruppersberger, said, “The program does not target American citizens.”
The XKeyscore presentation claimed the program had generated intelligence that resulted in the capture of more than 300 terrorists. By contrast, the documents released by the government about the domestic phone log program were more abstract.
They included briefing papers to Congress from2009 and 2011 about the “very large scale” logging of Americans’ calling records — along with a related program that logged Americans’ e-mails, and that was shut down later in 2011 — portraying the programs as providing a vital and important capability.
But Senator Ron Wyden, an Oregon Democrat on the Senate Intelligence Committee who has been a leading critic of the bulk collection programs, said the program had been shut down because officials were unable “to provide evidence to support the claims” of operational value. Mr. Wyden has also questioned the utility of the phone log program.
The new documents also included an April “primary order” by the Foreign Intelligence Surveillance Court that supported orders requiring phone companies to turn over all customer records. It said the government may access the records only when there are “facts giving rise to a reasonable, articulable suspicion” that the number to be searched is associated with terrorism.
However, it said that the results of each inquiry are then placed in a “corporate store” that analysts may search without any such limits. 
Intelligence officials have separately said that search results include not just a target’s phone records, but also exponentially larger sets of the records of people in as many as three concentric circles around the target.

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