Flat black circles on top of traffic signal control boxes, which are large, gray or painted metal boxes, typically found at street corners.
The Acyclica device casts a fake Wi-Fi network and tracks phones that try to join the network in passing cars. Since each phone has a unique identifier …, different Acyclica installations can track your personal location as you pass them in the city.
Is iOS latest susceptible on default settings? w/“Rotating” “Private Wi-Fi Address“> The camera can have different ways of seeing encoded in it, including kinds of gazes that enforce social agreements about what kinds of behavior and people are considered “normal”
The phrase "kinds of gazes" strikes me as the sort of thing that's only going to make sense to people trained in a very particular and idiosyncratic flavor of ethical critique. What a normal person sees here is, "These cameras can detect if people are acting bizarre and dangerous," which is probably something most people would appreciate. In Seattle, the problem, of course, is that the streets are full of people acting bizarre and dangerous, it doesn't take a camera network to find them, and the police seem to be under strict orders not to do anything about it.
However, my concern is always about the possibility for misuse. Even if I trust the current government, it doesn't mean I will trust a future one. What if they use the technology to track/monitor people like investigative journalists? We've already seen a recent state passing bills that would make it harder for investigative journalism to happen. So it's not even out of the realm of possibility for this technology to get used in ways that even would be deemed "legal" as they can simply expand the laws to use it unreasonably in the future.
There is also the other obvious concern which is surrounding things like data breaches or other unauthorized access issues. There have already been many people exposing some large security flaws in a lot of the devices currently out there.
Where I am stuck is how do we balance the huge set of benefits that can come from this kind of tech, with the tradeoffs? Ultimately this tech is unlikely to stop being implemented as governments and even most of the population is largely unbothered by mass surveillance. I almost don't even bother bringing up discussions on these topics with non-tech people as I have yet to find someone who seemed to care at all about this. If anything they are very in support of this technology being implemented as they seem unable to understand the tradeoffs due to it often requiring more technical knowledge. They just see all the positives it can give, and don't grasp the negatives.
Ultimately people usually desire safety, and these cameras definitely can give people more safety. Is it possible to balance safety with proper privacy safeguards?
The content itself is somewhat interesting but imo plain language would be more accessible.
Generally, most modern devices send broadcast/wildcard probes precisely to avoid leaking the PNL. From what I know, directed probes are only sent for hidden APs.
Yes, they take camera images and videos and there is value judgment regarding the behaviors.
Reading between the lines, the authors criticize the approach of law enforcement around drug use and dealing, living on the street in tents etc.
But the language makes it sound like special academic expert language and hence automatically right and high prestige.
> What a normal person sees here
The post is talking about you.
[[Surveillance cameras normalize/denormalize behavior in a way that is easily biased and undemocratic.]]
It might e.g. direct the full force of law against a drunk urinating on a tree (easy to spot/classify), while tolerating vicious verbal attacks disguised by somewhat subdued body language (missing data/difficult to detect).
Letting automated surveillance systems judge people will inevitably influence our own collective judgement.
The problem with surveillance like this becomes "who gets to decide what is bizarre and dangerous?"
Yes the police can be abusive tyrants. But a society with no rules and no rule enforces is not a prosperous society. And yet if you lived in total anarchy you could oppose anything beyond pure rules and any rule enforcement with that quote.
Clearly the slope is very very very <breathe> very very slippery. And yet the ideal, dare I say necessary, point is not at the far end cap.
Look around.
99% of people couldn’t care less about privacy and are begging to give over their whole personal life data for (insert corporation) “points/rewards/discounts”
Two people arguing in public, words only, is close to a legal non-event in the US. So I would hope so?
Do they?
There are millions of these cameras all around the country, yet when pressed about their value, Flock and cops can only point to one or two crimes prevented/solved at a time. And they're usually things like "caught a burglar after the fact," or "stopped someone from dumpster diving."
Get back to me when they find Samantha Guthrie.
"sends the information to a central storing place (called a database)" TIL what the word database means?
"Amazon can use your purchases to know more about you using patterns." Is this news to someone? Condescending.
"It might be connected to a network (via Internet or radio frequency)" Radio frequency and Internet are not really directly comparable
Also don't like that the site hijacks the appearance of my mouse pointer, which feels similarly disrespectful of the reader.
Nancy?
> Is this news to someone?
Yes, many. xkcd 1053.
Windows also randomizes by default as long as your network controller supports it.
It sounds like Linux requires some textual configuration that depends on your distro.
But since this is about surveillance, I hope that detection of verbal threats is not a goal of government surveillance because it's difficult to imagine how that could be accomplished without significant loss of privacy or other liberties.
I think it's just a way to try and dismiss the cameras without trying to tackle the heart of the problem. When you have to contend with the fact that the cameras have a lot of useful purposes, it makes arguing against them much more challenging. If you can pretend they are not useful, it may be a way to try to stiffle any productive discussion around them.
It says: " Agent: Voice to text detected: I have everything ready - all the XXX chemicals are ready in the van and I'm going to park in the 900 S Crap St now"
Agent: Thread Level HIGH.
Agent: Looking up local codes.
Agent: Mayor signed SB-1238 in 2026 - no surveillance devices may be used for audio threat determination.
Agent: Threat silenced, but logged.
Judge: Oh, that makes sense. Make sure to bag and tag and bill the families for the bags.
City Employee: We also know who parked the van, should we arrest them.
Judge: No it looks like SB-1238 would forbid us from using this data for the purposes of arrest. I guess send them a thank you letter for testing our laws.
Note: this guide is a work in progress and may change at any time! We’ve done our best to cite our sources, but this page has not been professionally fact-checked.
This workshop was first run as part of two pilot workshops with the Tech Equity Coalition, in partnership with the ACLU of Washington, in October 2019. A zine based on this work was included at the CtrlZ.AI zine fair and the HOT MESS digital exhibition in 2020.
In this tour of downtown Seattle, we’ll practice spotting some of the layers of the “smart” city that are hidden in plain sight, collecting and storing data about our lives, as well as the kinds of thinking that justify their existence. Each surveillance technology in our field guide includes the following categories to help you “spot” surveillance technology in the wild: Address, Appearance, What it does, How the tech works, Social importance, Discussion and finally, References.
This is the route we will be taking on the walking tour. Click on each stop to pop up its location, and feel free to explore it on Google Maps, e.g. with Street View. The route spans 1.3 miles. Below, we outline each of the surveillance tools/sites listed above.
Address: Practically everywhere, but the above example is at 523 Union St.

Surveillance camera hotspots (red = more likely)
Appearance: Poles, ledges, overhangs, rooftops. They are often spotted watching parking lots, doors, banks, intersections, and government buildings. Indoors, they are typically spotted on roofs and near cash registers.

Different types of surveillance cameras.
What it does: The camera has a memory. It can record video or other data and add it to a store of records over all time. The camera can be controlled remotely: it can swivel, zoom, or change height.
How the tech works: Camera recordings can be analyzed for patterns and shared with other entities, both private (your neighbors) and public (the local police).
It might be connected to a network (via Internet or radio frequency), which lets it send video to anywhere, receive instructions from anywhere, and lets other people, who might be anywhere, watch the video stream.
Discussion
References
Address: 2131 7th Ave
Appearance: Looks like it could be any other convenience store… but it’s not! Inside, you must scan an app to enter, and there are no cashiers.
Notice the gates where you must scan a QR code from your Amazon account to enter.
What it does: Amazon Go tracks your movement using overhead cameras to determine your browsing habits.
Overhead cameras in the ceiling of the store, tracking consumers’ movements in the store.
How the tech works: Amazon can use your purchases to know more about you using patterns. For example, if you buy Hanukkah decorations, they might know you’re Jewish. Or certain foods might be correlated with certain health issues. They can combine your in-store purchases with your online Amazon purchases for even more predicting power.
What is Amazon doing with their knowledge about you? There’s no oversight or transparency. Your data could be sold to third parties without your consent.
Discussion
References
Address: 699 Spring Street
Fig. 1. One automated license plate reader (we believe) perched over a highway onramp in downtown Seattle, here, the traffic entering the ramp onto the I-5 Express highway that cuts vertically through downtown Seattle.
Appearance: An automated license plate reader (ALPR) is a little camera that is either mounted to a pole (stationary) in high-traffic locations or the top of a police car (mobile) (Fig. 2.).

Fig. 2. An ALPR can be mounted (usually high above major roads) or mobile (in/on police cars).
What it does: An ALPR photographs the license plate of every car that passes by and records the time and place of the encounter, as well as the plate number (Fig. 3.), and sends the information to a central storing place (called a database). Based on the information from an ALPR (e.g. “plate number ABC1234 detected at the intersection of Pike and Pine at 1:20 PM”), and the type of ALPR, a particular city agency may take an action.
Fig. 3. An up-close view of a stationary ALPR.
There are three main kinds of ALPRs in Seattle. Stationary ones (type #1), owned by the Dept. of Transportation, are used for traffic purposes, to estimate travel time. Mobile ones, owned by the Seattle Police Dept., are used for parking enforcement (type #2) or law enforcement (type #3), to ping a police officer directly when a “wanted” license plate is spotted. These three kinds of ALPRs have different data retention periods; police ALPR data can be stored for up to 90 days, whereas other ALPR data is (supposedly) deleted immediately. In Seattle, the Seattle Department of Transportation has at least 99 stationary ALPRs deployed, and the Seattle Police Department has 19 vehicles with mounted ALPRs.
How to spot: ALPRs are usually mounted up high near high-traffic areas, like highways, downtown areas, interstates, and bridges. Maps of stationary ones are difficult to find because cities don’t want drivers knowing where they might be issued speeding tickets.
Regulations on ALPR use—both the technology and the data collected—are mostly nonexistent nationally, as well as in Seattle. That means that the agency that owns the system can choose whether and how they want to retain data, or track vehicle movements. Check out the map in Fig. 4: though SDOT says it does not track individual drivers’ movements, data from an ALPR system could easily be combined to do so.
Fig. 4. Our guess at ALPR locations in Seattle. (This is not a definitive map of ALPR locations.) As a car moves, its location could be recorded by multiple ALPRs. (Image: WSDOT Traffic GeoPortal)
Because of the lack of regulations, nationally, data-sharing is rampant with license plate data. According to EFF, many law enforcement agencies share plate data directly with each other, even across borders. ALPR data also makes it into private databases such as Thomson Reuters’s CLEAR, access to which can be bought by agencies and private corporations. In Seattle, SDOT and SPD say that they do not share data directly from ALPR systems, but it’s unclear what agencies might be able to access data with a request (per the two Seattle Surveillance Ordinance reports on ALPRs).
When it comes to ALPR data, beware of scope creep (Fig. 5): due to pervasive collection and data-sharing, your license plate could leave its original context and purpose and be used in ways you never consented to, such as private investigation or targeted advertising.
Fig. 5. A diagram of scope creep: how your data, for example an ALPR sighting of your license plate, could leave its original context and purpose without your knowledge or consent.
How the tech works: ALPR is one of the older surveillance technologies; it was first invented and tested in the UK in 1984 to detect stolen cars. It uses a technique called optical character recognition (OCR), from a field called computer vision, to automatically make a guess at the letters and numbers in a picture of a license plate. This guess is probabilistic; i.e. it could be wrong. Database technologies allow all the information collected by ALPRs to be collected, and questions asked of it.
Interventions
Discussion
Further questions
(We are leaving answers to these questions out of our introductory writeup, but encourage you to find out the answers for your city. Thank you to Tech Fairness Coalition members for asking these questions!)
References
Address: Corners of Spring & 5th and Spring & 4th
Appearance: Flat black circles on top of traffic signal control boxes, which are large, gray or painted metal boxes, typically found at street corners.
What it does: The Acyclica device casts a fake Wi-Fi network and tracks phones that try to join the network in passing cars. Since each phone has a unique identifier (called a MAC address – like your Social Security Number, but for a device), different Acyclica installations can track your personal location as you pass them in the city.
How the tech works: You know how your phone or laptop auto-connects to Wi-Fi networks? To do this, your device is shouting to the world a ton of your personal information in something called a probe packet. A probe packet contains the MAC address as well as the list of all the past Wi-fi networks that your device has tried to join before, which can reveal a lot about you! (See Fig. 1.) Acyclica listens for these probe packets, and keeps track of the different places it has heard your MAC address to create a location history.
Another big issue is data escaping scope. The Seattle city government may promise certain things about the data, but data that govermnment agencies collect historically has a funny way of being stored for longer than promised and shared with other agencies (like ICE or law enforcement) or quasi-private entities (like Palantir) and used to circumscribe the movements of members of marginalized communities.
Discussion
References
Address: Visit the Washington State Fusion Center (WSFC), in the Abraham Lincoln Building, 1110 3rd Ave, Seattle Washington, 98101
Appearance: Seattle’s fusion center seats a team of 15-30, with full time intelligence officers from the Seattle Police, County Sheriff, state investigators and analysts. These center employees are linked through the State Intelligence Network to every law enforcement agency in the state, and have access to the FBI both through their computer systems as well as through a security corridor linking them to the FBI’s own Field Intelligence Group office on the floor above as well as the Puget Sound Joint Terrorism Task Force.
Fig. 1. Fusion centers are located in every state of the United States. WSFC is just one of roughly 75. (Source: Public Intelligence)
What it does: After 9/11 fusion centers were born with the “Intelligence Reform and Terrorism Prevention Act of 2004” (IRTPA) along with a host of other “counter-terrorism” intelligence entities such as the Department of Homeland Security. With 18 centers first established, there are now 78 recognized centers. Fusion centers facilitated a national anti-terrorism strategy of intel sharing between local and national agencies as well as with private companies and the military.
Fig. 2. The U.S. government’s cross-sector information system. (Source: Public Intelligence)
How to spot: This building’s location in downtown Seattle is no accident. Most fusion centers are typically located in urban centers to put them in the center of multiple agencies that administer public safety needs, fire, emergency response, public health providers, and private sector security agencies.
Multiple incidents of privacy violations and political monitoring are definite examples of concerns associated with fusion centers. But actually as Brendon McQuade argues in “Pacifying the Homeland: Intelligence Fusion and Mass Supervision” this confusing array of coordinating agencies makes it harder to expose political policing the same way as COINTELPRO in the Panther 21 / Handschu Case.
Fusion Centers are mandated to include private sector involvement and their priorities are split between multiple stakeholders at the local, federal, and private level. This puts the role of fusion centers in a fractured light.
Many fusion centers have played a role in monitoring movements. From the Cato Institute’s summary of ACLU Fusion Center reports, “We’re All Terrorists Now:”
“The North Texas Fusion System labeled Muslim lobbyists as a potential threat; a DHS analyst in Wisconsin thought both pro- and anti-abortion activists were worrisome; a Pennsylvania homeland security contractor watched environmental activists, Tea Party groups, and a Second Amendment rally; the Maryland State Police put anti-death penalty and anti-war activists in a federal terrorism database; a fusion center in Missouri thought that all third-party voters and Ron Paul supporters were a threat; and the Department of Homeland Security described half of the American political spectrum as “right wing extremists.”
However, their role during the Occupy movement showed that many fusion centers claimed official policies of non-involvement in line with DHS’s official policies at the federal level. In cases with private sector stakeholder interests such as in Arizona, however, we see a different story. When Occupy Phoenix targeted the American Legislative Exchange Council (ALEC) for its profit ties to ICE and its role in passing a bill that allowed law enforcement to racially profile latinx drivers, Arizona’s fusion center assigns an officer to monitor Occupy Phoenix and liaise with ALEC. ACTIC Provided ALEC with intelligence, including a “persons of interests” list regarding an protest of an ALEC conference who were later targeted with arrests.
How the tech works:
Fusion centers do not store most of the data available to them. Instead, they negotiate agreements that allow remote access to existing databases. They will work around privacy protections and buy access to the private databases (e.g. Vigilant’s ALPR database; see ALPR walking tour stop), which provide a plethora of information on individuals with no criminal record.
Fusion centers have access to the DHS’s Homeland Security Data network, and several FBI data portals. A few databases used by the WSFC include:
Interventions:
What are tools we have against such a large federal, local, and private conglomerate? The strengths of a fusion center also contain its weaknesses. A fractured chain of command often presents conflicts and confusion with rival agency agendas. It appears that some measure of transparency calls and privacy concerns work after major incidents, with some ability to keep watch on the stakeholder agendas that float through fusion center information requests via public records requests.
Perhaps the greatest effective intervention comes from its funding structure. Though the core “hub” of fusion centers come from federal grants, the specific programs of a fusion center are funded more individually, coming from grants that focus on domains including education, health, and neighborhoods. Such programs promote a model of community wellness that relies on police enforcement. And finally, pre-empting the creation of such centers in the first place might be the most effective intervention with these centers.
Fig. 3. If you see something, say something. (Source: Northwest Warning, Alert & Response Network)
Discussion
The location of this fusion center represents a focal point of infrastructure and power. What is being melded together at these fusion centers? Fusion centers popped up in the years after 9/11, particularly from 2003-2007, from an infusion of homeland security grants. This marriage between federal agencies including the CIA, FBI, Homeland Security and other federal bureaus brings a level of national scrutiny to the local level, with individual reporting made possible through the Nationwide Suspicious Activity Reporting (SAR) initiative. This resulted in two European businessmen being reported for “looking suspicious” on the Washington State Ferry in 2007.
Seattle’s most famous case involves the arrest of anti-war Port protestor Phil Chinn, a student at Evergreen State College who was arrested during an anti-war protest in May 2007. The activists had been infiltrated by an army intelligence officer who disseminated protestor information through the fusion center. Not long after the Chinn incident, the center changed its name from Washington Joint Analytical Center (WAJAC) to the Washington State Fusion Center and implemented a number of changes that appear to conform to tighter privacy controls and civil liberties concerns from advocates.
Fusion Centers play a large role in a “human rights compliant” world of reformed policing. As Brendon McQuade argues in “Pacifying the Homeland: Intelligence Fusion and Mass Supervision,” the decentralized combination of interests results in a model of “pacification” or control of the economically dis-enfranchised, via a pervasive collection of data to flag and identify locations, communities, and other populations.
We see this in Camden, where a new “reformed” Camden County Police opened a fusion center, the Real Time Tactical Operations Intelligence Center. This center powers a surveillance city, with cameras, ShotSpotter gunshot detectors, automated license plate readers, a mobile observation tower. Community policing interactions become intelligence gathering exercises. All of these data streams flow into Camden’s “fusion center” producing “predictive” analytics to direct police to blocks of interest. Fusion centers exist in a world where surveillance is presented as an alternative model to incarceration and traditional policing. The term used in connection with widespread domestic surveillance – “pacification” – evokes themes of criminalization, gentrification and displacement.
References
Address: 1122 3rd Avenue
Appearance: Tall, windowless building tucked behind a bus stop, with an AT&T logo and sculpture on its front.
Fig. 1. 1122 3rd Avenue: The AT&T peering site. Business in the front…
What it does: This is a building called a peering site where telecoms (like AT&T) exchange digital information, such as emails, phone calls, and internet chats. Naturally, as a hotspot of information, this is also a good place for intelligence agencies (like the NSA) to wiretap (or eavesdrop on and record) the information.
How to spot: Peering sites are critically important buildings meant for machines, not people. So, they are usually tall, windowless, shored-up buildings near downtown information hotspots, often near law enforcement or intelligence centers.

Fig. 2. …surveillance in the back. (The NSA wiretap site)
Fig. 3. The Seattle AT&T + NSA facility is connected to the rest of the peering hubs that process internet traffic as part of the FAIRVIEW surveillance program. (Source: The Intercept)
How the tech works: Because AT&T has such a huge network, it trades network capacity with other Internet service providers, or exchanges it with them. The way that two networks “peer” is that their infrastructure physically meets in a building (as shown in Fig. 4.) to exchange information.
Fig. 4. In a big river of information, the NSA can put a sieve.
The NSA is able to eavesdrop on this exchange (through an unknown means) and search through the collected communications.
Discussion
References
After taking participants through the walking tour, it’s good to bring folks back to a room and have a group discussion of what folks just experienced. Some questions are:
If you have feedback on this page, or would like to use or adapt the tour in your city, please send us an email.