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Matt Cagle
@Matt_Cagle
, 9 tweets, 4 min read Read on Twitter
Today the ACLU sued the FBI, DHS, and five other federal agencies to learn more about how they monitor social media users and speech. But local law enforcement agencies have been very active in this space too. (Thread)
We have already seen how local police spy on social media users. In 2016, we discovered records showing this practice was widespread here in California. medium.com/@ACLU_NorCal/p…
Across America, local law enforcement have monitored activists, protests, and religious minorities. A few examples:

Baltimore: theverge.com/2016/10/11/132…
San Jose: eastbayexpress.com/oakland/oaklan…
Boston: bostonglobe.com/metro/2018/02/…
Memphis: theappeal.org/memphis-police…
This map by the Brennan Center depicts how widespread social media surveillance already was back in 2016. brennancenter.org/analysis/map-s…
Vendors have marketed monitoring products to police, touting their ability to monitor Black Lives Matter and other activists. aclunc.org/blog/surveilla…
In 2016, the @ACLU_NorCal, @ColorofChange, and @Mediajustice revealed how vendors had built surveillance software for police by exploiting developer channels on Facebook, Twitter, and Instagram. aclunc.org/blog/facebook-…
In response, Facebook and Instagram banned developers from exploiting user data for surveillance tools. Twitter doubled down on its own similar ban. wired.com/2017/03/facebo…
But even with these changes, law enforcement’s desire to conduct surveillance of social media users has only increased. Every month we hear about new govt initiatives and vendors offering to help.
The public deserves transparency into federal and local social media surveillance. But it doesn’t stop there: social networks share responsibility and must do more to stand up for users and their data.
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Matt Cagle
@Matt_Cagle
THREAD: ACLU-obtained docs reveal that Amazon is helping govts deploy its dangerous new facial recognition technology. Today 40 civil rights orgs are demanding Amazon prohibit govts from using this service, called Rekognition. 1/ aclunc.org/rekognition-an…
What is Rekognition? An AI-powered surveillance software capable of identifying people in photos and film in real-time against databases with tens of millions of face photos. It's being pitched as a way to track people, and it’s open to developers. 2/
Amazon advertises Rekognition to identify people in places such as airports, even as Americans protest at unprecedented levels. It encourages tracking “people of interest,” raising the risk that those branded suspicious by govts will be seen as fair game. 3/
Read 17 tweets
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Matt Cagle
@Matt_Cagle
Tonight Oakland moves one step closer to passing the strongest surveillance technology ordinance in the nation. A quick thread on why @ACLU_Norcal loves Oakland’s ordinance (and you should too:). oakland.legistar.com/View.ashx?M=A&…
@ACLU_NorCal Oakland’s ordinance is future-proof & covers a broad array of surveillance technologies, including social media monitoring, facial recognition, predictive policing and other AI-assisted software.
@ACLU_NorCal Oakland’s ordinance requires public input at key moments during consideration of a new surveillance proposal. The City’s groundbreaking Privacy Advisory Commission is central to this process.
Read 13 tweets

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Dr. X
@XKeyscore1
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Statement on the FBI’s Investigation of Suspicious Packages fbi.gov/news/pressrel/…
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