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Does the National Security Agency (NSA) have the authority to collect and keep all encrypted Internet traffic for as long as is necessary to decrypt that traffic? That was a question first raised in June 2013, after the minimization procedures governing telephone and Internet records collected under Section 702 of the Foreign Intelligence Surveillance Act were disclosed by Edward Snowden. The issue quickly receded into the background, however, as the world struggled to keep up with the deluge of surveillance disclosures. The Intelligence Authorization Act of 2015, which passed Congress this last December, should bring the question back to the fore. It established retention guidelines for communications collected under Executive Order 12333 and included an exception that allows NSA to keep ‘incidentally’ collected encrypted communications for an indefinite period of time. This creates a massive loophole in the guidelines. NSA’s retention of encrypted communications deserves further consideration today, now that these retention guidelines have been written into law. It has become increasingly clear over the last year that surveillance reform will be driven by technological change—specifically by the growing use of encryption technologies. Therefore, any legislation touching on encryption should receive close scrutiny.

Section 309 of the intel authorization bill describes “procedures for the retention of incidentally acquired communications.” It establishes retention guidelines for surveillance programs that are “reasonably anticipated to result in the acquisition of [telephone or electronic communications] to or from a United States person.” Communications to or from a United States person are ‘incidentally’ collected because the U.S. person is not the actual target of the collection. Section 309 states that these incidentally collected communications must be deleted after five years unless they meet a number of exceptions. One of these exceptions is that “the communication is enciphered or reasonably believed to have a secret meaning.” This exception appears to be directly lifted from NSA’s minimization procedures for data collected under Section 702 of FISA, which were declassified in 2013. 

While Section 309 specifically applies to collection taking place under E.O. 12333, not FISA, several of the exceptions described in Section 309 closely match exceptions in the FISA minimization procedures. That includes the exception for “enciphered” communications. Those minimization procedures almost certainly served as a model for these retention guidelines and will likely shape how this new language is interpreted by the Executive Branch. Section 309 also asks the heads of each relevant member of the intelligence community to develop procedures to ensure compliance with new retention requirements. I expect those procedures to look a lot like the FISA minimization guidelines.

When the premiere surveillance reform bill of 2014 is reintroduced in the current Congress, it can count on antipathy and even opposition from many of the civil libertarian activists who pushed it to the brink of passage last year. The USA Freedom Act, a bill that aims to stop the National Security Agency (NSA) from its daily collection of US phone records in bulk, is set for a 2015 revamp after failing in the Senate last November. Supporters pledge to unveil it late this week or early next week.

This time, as reported by the Guardian, the bill is shaping up to be the preferred piece of legislation to extend the lifespan of a controversial part of the Patriot Act, known as Section 215. The NSA uses Section 215 to justify its domestic mass surveillance. The FBI considers it critical for terrorism and espionage investigations outside typical warrant or subpoena channels. Section 215 expires on 1 June. The bill’s architects consider the USA Freedom Act the strongest piece of legislation to roll back the domestic reach of US surveillance that Congress will pass. But a new coalition of civil libertarian groups on the left and the right is already looking past the bill, in the hopes of broadening what is possible – something they consider realistic, thanks to the intelligence community’s fervent desire to avoid the expiration of Section 215.

A group of Chinese computer scientists from academia and industry have published a paper documenting a tool for fooling facial recognition software by shining hat-brim-mounted infrared LEDs on the user's face, projecting CCTV-visible, human-eye-invisible shapes designed to fool the face recognition software. The tactic lets the attacker specify which face the categorizer should "see" -- the researchers were able to trick the software into recognizing arbitrary faces as belonging to the musician Moby, the Korean politician Hoi-Chang and others.

These and other classified documents provided by former NSA contractor Edward Snowden reveal that the NSA has developed technology not just to record and transcribe private conversations but to automatically identify the speakers. Americans most regularly encounter this technology, known as speaker recognition, or speaker identification, when they wake up Amazon’s Alexa or call their bank. But a decade before voice commands like “Hello Siri” and “OK Google” became common household phrases, the NSA was using speaker recognition to monitor terrorists, politicians, drug lords, spies, and even agency employees. The technology works by analyzing the physical and behavioral features that make each person’s voice distinctive, such as the pitch, shape of the mouth, and length of the larynx. An algorithm then creates a dynamic computer model of the individual’s vocal characteristics. This is what’s popularly referred to as a “voiceprint.” The entire process — capturing a few spoken words, turning those words into a voiceprint, and comparing that representation to other “voiceprints” already stored in the database — can happen almost instantaneously. Although the NSA is known to rely on finger and face prints to identify targets, voiceprints, according to a 2008 agency document, are “where NSA reigns supreme.” It’s not difficult to see why. By intercepting and recording millions of overseas telephone conversations, video teleconferences, and internet calls — in addition to capturing, with or without warrants, the domestic conversations of Americans — the NSA has built an unrivaled collection of distinct voices. Documents from the Snowden archive reveal that analysts fed some of these recordings to speaker recognition algorithms that could connect individuals to their past utterances, even when they had used unknown phone numbers, secret code words, or multiple languages.

The classified documents, dating from 2004 to 2012, show the NSA refining increasingly sophisticated iterations of its speaker recognition technology. They confirm the uses of speaker recognition in counterterrorism operations and overseas drug busts. And they suggest that the agency planned to deploy the technology not just to retroactively identify spies like Pelton but to prevent whistleblowers like Snowden.

The opening panel of the Stigler Center’s annual antitrust conference discussed the source of digital platforms’ power and what, if anything, can be done to address the numerous challenges their ability to shape opinions and outcomes present. 

Google CEO Sundar Pichai caused a worldwide sensation earlier this week when he unveiled Duplex, an AI-driven digital assistant able to mimic human speech patterns (complete with vocal tics) to such a convincing degree that it managed to have real conversations with ordinary people without them realizing they were actually talking to a robot.   While Google presented Duplex as an exciting technological breakthrough, others saw something else: a system able to deceive people into believing they were talking to a human being, an ethical red flag (and a surefire way to get to robocall hell). Following the backlash, Google announced on Thursday that the new service will be designed “with disclosure built-in.” Nevertheless, the episode created the impression that ethical concerns were an “after-the-fact consideration” for Google, despite the fierce public scrutiny it and other tech giants faced over the past two months. “Silicon Valley is ethically lost, rudderless and has not learned a thing,” tweeted Zeynep Tufekci, a professor at the University of North Carolina at Chapel Hill and a prominent critic of tech firms.   The controversial demonstration was not the only sign that the global outrage has yet to inspire the profound rethinking critics hoped it would bring to Silicon Valley firms. In Pichai’s speech at Google’s annual I/O developer conference, the ethical concerns regarding the company’s data mining, business model, and political influence were briefly addressed with a general, laconic statement: “The path ahead needs to be navigated carefully and deliberately and we feel a deep sense of responsibility to get this right.”

Google’s fellow FAANGs also seem eager to put the “techlash” of the past two years behind them. Facebook, its shares now fully recovered from the Cambridge Analytica scandal, is already charging full-steam ahead into new areas like dating and blockchain.   But the techlash likely isn’t going away soon. The rise of digital platforms has had profound political, economic, and social effects, many of which are only now becoming apparent, and their sheer size and power makes it virtually impossible to exist on the Internet without using their services. As Stratechery’s Ben Thompson noted in the opening panel of the Stigler Center’s annual antitrust conference last month, Google and Facebook—already dominating search and social media and enjoying a duopoly in digital advertising—own many of the world’s top mobile apps. Amazon has more than 100 million Prime members, for whom it is usually the first and last stop for shopping online.   Many of the mechanisms that allowed for this growth are opaque and rooted in manipulation. What are those mechanisms, and how should policymakers and antitrust enforcers address them? These questions, and others, were the focus of the Stigler Center panel, which was moderated by the Economist’s New York bureau chief, Patrick Foulis.