The Brief

This article is an updated version of The Markup’s original article on how to prepare your phone for a protest, published in 2020.

No Kings Day protests are taking place this Saturday across the country. For the second time during this administration, organizers predict millions of people will hit the streets to declare that "in America, we don’t have kings and we won’t back down against chaos, corruption and cruelty."

Before going to a protest, demonstrators or observers should note their cellphones may subject them to surveillance tactics by law enforcement. If your cellphone is on and unsecured, your location can be tracked and your unencrypted communications, such as SMS, may be intercepted. Additionally, police may retrieve your messages and the content of your phone if they take custody of your phone, or later by warrant or subpoena.

Deciding How and If to Bring Your Phone

Your proximity to organizers of a protest, your immigration status (here’s what to know if you’re asked about your immigration status at a protest) and other factors mean there is no one-size-fits-all privacy advice for whether to bring your mobile phone to a protest.

“All protesting and all marches are a series of balancing acts of different priorities and acceptable risks,” said Mason Donahue, a member of Lucy Parsons Labs, a Chicago-based group of technologists and activists who run digital security training classes and have investigated the Chicago Police Department's use of surveillance technology. “There is a lot of communication ability that goes away if you don't bring a phone period,” he said.

Leaving your phone behind means the data it holds and transmits will be the safest it will ever be, but it also means giving up access to important resources. It becomes much more difficult to coordinate with others or get updates from social media. For many, phone cameras are also the only way they can document what’s happening.

If you have access to a separate phone, whether it’s a “burner” phone, an old smartphone that you can reset or an old-fashioned camera, you could choose to bring these devices instead of your regularly used phone. However, not everyone has access to these devices or can afford to purchase a separate phone just for protesting.

If you take your cell phone with you, the rest of this guide runs through how to minimize risks to your privacy.

Use a Passcode, Not a Fingerprint

Fingerprint and face locks may be convenient ways to secure your phone, but they don’t always work in your favor if your phone is seized by law enforcement.

In the United States, the Fifth Amendment grants people the right not to be "compelled in any criminal case to be a witness against" themselves. When it comes to whether you’re obligated to unlock your smartphone, your Fifth Amendment protection varies depending on whether you’re using a passcode or biometrics like a fingerprint or face scans.

Courts have made opposing rulings on whether the Fifth Amendment applies to both passcodes and biometric locks, and most recently, a federal appeals court ruled that law enforcement can compel a person to unlock their phone using their fingerprint. On the whole, if you are choosing to bring your phone, privacy experts recommend that you use a passcode as your best option, but it isn’t failsafe.

“Police have these tools by Cellebrite, which essentially try to do tons and tons of guesses really fast on your phone to see what the passcode is. It works pretty effectively for the police because most people use fairly predictable and simple numerical codes,” explained David Huerta, a digital security trainer at the Freedom of the Press Foundation.

He recommends using an alphanumeric passcode, the longer the better. To add an alphanumeric passcode:

iPhone: Settings > Face ID & Passcode > Turn Passcode On or Change Passcode > Passcode Options > Custom Alphanumeric CodeAndroid: Settings > Security > Screen Lock > PasswordTo turn your biometric lock off:

iPhone: Settings > Face ID & Passcode >Tap Reset Face IDAndroid: Settings > Security & location > Pixel Imprint > Click Delete next to each fingerprintJennifer Granick, Surveillance and Cybersecurity Counsel at the American Civil Liberties Union, told The Markup, “It is legal to refuse to unlock your phone or to disclose your passcode, citing your Fifth Amendment rights if possible. There should be no negative ramifications.” Granick noted however, that police do not always act lawfully.

Subdue Your Signals (and Download Signal)

Protesters should be prepared for surveillance of their cellphone’s transmissions — even if they don’t make any calls, Huerta said.

In some parts of the United States, law enforcement has tools that can intercept cellphone signals, called “stingrays” or “IMSI catchers.” Stingrays collect the identifying details of phones in the area by “impersonating” cell towers, and newer models are believed to be able to intercept calls and messages, according to TechCrunch.

In 2018, the American Civil Liberties Union identified 75 agencies in 27 states and the District of Columbia that owned stingrays.

You can configure your phone to avoid connecting to the subset of stingrays that use 2G connections:

iPhone: Settings > Privacy & Security > Lockdown ModeAndroid (v12 or newer): Settings > Network & Internet > SIMs > [Carrier] > Allow 2G > OffNote that activating “Lockdown Mode” on iPhone will restrict your phone use, and enhance your security, in a number of other ways; see the link above for more details. Similarly, you may experience less reliable cellular connectivity on Android without the 2G option enabled.

Huerta said that since some of these devices can scoop up text messages, you should use an encrypted messaging app like Signal or WhatsApp instead of your default one. (For iPhone users, iMessage is encrypted, but be warned: If you text with an Android phone user, it automatically switches to SMS, which is not.)

Huerta recommends Signal over other apps because it’s battle-tested: In 2016, the U.S. District Court for the Eastern District of Virginia served a subpoena on Open Whisper Systems, the company that makes the app, seeking information about two Signal users for a federal grand jury investigation. The only information the company was holding? The time the users’ accounts were created and the date the users last connected to the app’s servers.

Lockdown Location Tracking

Law enforcement can also request “cell tower dumps” from telecom providers. In its February 2020 transparency report, AT&T disclosed that it received 1,289 demands for cell tower searches during the second half of 2019. The company said that the demands “ask us to provide all telephone numbers registered on a particular cell tower for a certain period of time."

Because of the risk of such surveillance, some experts suggest turning off your cellphone altogether at a protest. For instance, the Electronic Frontier Foundation recommends turning your phone off or enabling airplane mode while you’re at the protest, because it ensures that your device won’t be transmitting signals.

But turning off your phone means you won’t be able to communicate with others or use your camera to record. So if you have to keep your phone on, try to at least manage what location information your apps may have. The Verge has a handy guide for Android users, and Business Insider has a comparable one for iPhone users.

You can even turn off all location services entirely:

iPhone: Settings > Privacy > Toggle Location Services offAndroid: Settings > Location > Toggle Use location off 

Harden Your Hardware

Another scenario that Huerta suggested that protesters consider is what to do if your phone is seized by law enforcement. If you can, back up your device before heading out to make the decision to wipe it if you find yourself in a tight situation a little bit easier. There are tutorials for both iPhone and Android users.

Encrypting your phone also makes it more difficult to access information if it’s been seized, because files can only be read if someone has the encryption key. DuckDuckGo, the privacy-oriented search engine, has step-by-step instructions for both iPhone and Android users.

Neutralize Notifications

Notifications are normally a great way to quickly check messages, but if your phone is lost or seized, it may reveal information that you’re not comfortable sharing with others.

“Many times, if you don't have a chance to turn off your phone before a device gets seized, even if law enforcement can't unlock your phone,” Huerta said, if your notifications are on, “they don't even have to unlock your phone, they can just scroll down and see everything that you're up to.”

Reducing the amount of open information that sits on your locked screen can increase the security of you and the people you’re communicating with.

On Android, you can strip notifications of context by going to Settings > App & notifications > Notifications, going to the “Lock screen” section and turning off Sensitive notifications.

With iPhones, you can change how detailed an app’s notifications are by going Settings > Notifications, selecting that app and then scrolling down to the Options section and setting “Show Previews” to “Never” and “Notification Grouping” to “Automatic.”

You can also turn off notifications entirely:

iPhone: Settings > Notifications > Set Show Previews to NeverAndroid: Settings > Apps & notifications > Notifications > Notifications on lock screen or On lock screen > Don't show notifications

Think Before You Share

Photos and videos can reveal more than you intend.

Image files can contain metadata that includes the date the photo was taken, the make and model of the device it was shot on, and even the GPS location of where it was taken. One of the easiest ways to strip a photo of its accompanying metadata is to take a screenshot of it and post that instead of the original image, Huerta explains.

And even if you use a screenshot, check the image for information you might not want to make public, such as indications of location and the identity of other people.

Law enforcement has access to powerful facial recognition databases. Civilians also have tools in reach that can reverse engineer the who, what, and where of your social media posts. One way to mitigate these is to cover up identifying information using an emoji or by drawing over it with a solid color.

Signal Messenger also allows users to blur the faces of people in its camera image editor.

Physicalize Your Phonebook

Phones can run out of battery or get lost, broken or taken away. Don’t make it your only way to access important contact information.

Reporter Madeleine Davies suggested writing down the phone number of a lawyer or emergency contact on your arm with a Sharpie.

The National Lawyers Guild operates legal support hotlines across the United States that are specifically for people who have been arrested at political demonstrations. Look up a hotline for your area and write it down.

This article was originally published on The Markup and was republished under the Creative Commons Attribution-NonCommercial-NoDerivatives license.

Fifteen years ago, when modern electric vehicles were just hitting the road, no one knew exactly what to expect from their giant, expensive lithium-ion batteries.

As batteries age, they hold less and less energy. Anyone who's ever had a dying smartphone, or had to replace a vehicle's 12-volt starter battery, knows this painfully well.

EV batteries were intended to last longer than those smaller, cheaper batteries. But how much longer?

The predictions were not soothing. In 2010, the New York Times wrote that "estimates of [EV] battery packs' lifespan — no one knows for sure — range upward from seven years." The average car on the road is more than 12 years old. And that discrepancy made some would-be EV buyers nervous.

Batteries come with warranties, but they don't last as long as the car. If a high-voltage battery chokes out midway through a car's life, it needs replacing — at a price tag that can run in the ballpark of $5,000 to $20,000.

But there's good news.

As the fleet of EVs on the road ages, new data pooled from tens of thousands of vehicles is showing those batteries are lasting longer than expected.

How a battery ages 

Lithium-ion batteries undergo two kinds of aging. First, there's calendar aging: They degrade as time goes on, holding less juice, even if they just sit in storage.

Then there's cyclical aging, which is how much a battery degrades based on its use — being charged and discharged, over and over again.

That means there's no way to dodge degradation. Whether you use a vehicle a lot or a little, eventually, the battery will hold less energy.

But the trajectory of aging isn't a straight line. Recurrent, a research firm that pulls in data from over 30,000 EV drivers, describes it as an "S curve." There's a rapid decline at the beginning, a long leveling off, and then a more rapid decline at the end.

"It's very much like breaking in a pair of shoes," says Liz Najman, the director of market insights at Recurrent. The shoes start out stiff, but quickly get a little more give. "And then your shoes just last you," she says, until at some point, "It's all over, it's a rapid decline."

And when it comes to EV batteries, two things are becoming clear. The initial drop-off is not as severe as some people had worried. And the sharp end-of-life decline is taking a long, long time to materialize.

At auto auctions, a lot of healthy batteries

Adam George is a vehicle services director at Cox Automotive, which runs used car auctions around the country. In recent years, the number of used EVs for sale has increased enormously — reflecting the sharp rise in production a few years ago.

That's given Cox Automotive a growing pool of used EVs to evaluate before they're re-sold.

"We were expecting battery health to be experiencing mass degradation over the first one to three years of owning a vehicle," George says. "What we have seen, though, is that these 2, 3, 4-year-old off-lease cars that are coming back have battery health scores well upwards of 95%."

Recurrent's data also shows that cars from most major brands retain 95% or more of their expected range after 3 years, thanks in part to software and battery management systems that are designed to correct for the battery's early degradation, and give drivers consistent range.

So the initial drop-off in that S curve is in the range of 5% or so, give or take. After that? Well, Cox Automotive has tested nearly 80,000 EVs, and found an average battery health of 92%.

Decade-old EVs are overwhelmingly on their original batteries 

That data set is naturally skewed toward younger vehicles, because the vast majority of EVs on the road today are fairly new. There were only a million EVs sold between 2010 and 2018, and now there are more than a million sold each year.

So what about the oldest EVs, specifically?

Recurrent's data can help answer this question. Najman, a data scientist, notes a few caveats: It's a fairly small dataset, just because there weren't many EVs built more than a decade ago. And some of the oldest EVs use technology that can't connect to Recurrent's opt-in network.

But based on their community, among EVs that are 10 years old or older, only 8.5% have ever had a battery replacement. More than 90% of them are still on their original battery.

"EV batteries are holding up phenomenally well," Najman says.  

Recurrent has also looked at EVs of any age that have more than 150,000 miles on them, which provides a closer look at the effects of that cyclical aging. There, too, the batteries outperformed expectations.

"Cars with 150,000 miles or more, and that have not had battery replacements, are getting at least 83% of their original range," Najman says.

Now, there is one common reason why EV batteries will be replaced very early on: a defect. There have been multiple large-scale battery recalls, and any individual battery might have a flaw that requires replacement. But because all new EVs come with warranties, that kind of replacement isn't a financial blow to owners.

"That would be something that would be synonymous with, like, your engine or a transmission going bad," says Adam George, of Cox Automotive. "That's what warranties are for."

EV battery warranties typically cover at least 8 years and 100,000 miles, and automakers will replace the battery in the case of catastrophic failure, or a reduction in capacity (usually to 70% of the original or less).

A robotic arm displays the dual engine chassis of a Model S electric sedan at the Hawthorne Airport in Los Angeles on October 9, 2014.

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The tale of one Model S 

What do all these stats look like in real life? Consider Norman Hajjar's Model S.

Hajjar was an early adopter of electric vehicles. He kind of had to be: In 2013 he became an executive at the electric vehicle drivers' app Plugshare.

His 2012 Model S is one of the first that Tesla ever built. When he got it, he was well aware of the question mark about battery lifespan. "There was really no way of knowing what the future held for it because there was zero track record," Hajjar says.

In his case, the future held a battery defect: a loud noise followed by his car coming to an abrupt stop. He recalls Tesla replacing the battery — free of charge and under warranty — in 2014.

Since then, he's spent 12 years on that second battery. He's put around 200,000 miles on the car overall. And it's driving great, thank you very much.

"This vehicle still is a monster," Hajjar says, affectionately. "It is extremely fast, quick off the line."

The vehicle was originally rated to have 265 miles of range. Now it has about 220. Do the math, and it's at 83% of its original capacity. "The amount of degradation is pretty minor," Hajjar says.

Hajjar has moved on to a newer vehicle for his daily driver, mostly to enjoy higher-tech features. (His newer Model Y has Tesla's advanced driver-assistance software.) His son uses the Model S these days for his commute to college. "It's just sort of a backup vehicle now," Hajjar says. But he plans to hang on to it. He's sentimental about it, he says.

Why are batteries outlasting expectations? 

The engineers who developed modern EVs knew that prolonging battery life would be crucial. They designed systems to actively manage temperatures to improve battery lifespan, and software to constantly check battery health. Years have shown those efforts paid off.

But there's another reason EV batteries have out-performed expectations. It turns out that testing batteries is harder on them than the real world. Their lifespan was underestimated.

Simona Onori's lab at Stanford University has done research into the longevity of lithium-ion batteries, including a 2024 paper in Nature Energy showing that traditional methods for testing battery life are very stressful, and don't match the way batteries are actually used.

In most lab tests, researchers repeatedly cycle them from a very high state of charge to a very low one.

Real-world driving is gentler, with stops and starts — each start draws a bit of the battery's energy down, while each stop gives it a little time to recharge. A driver would never slam the accelerator to the floor and keep it there until the battery is dead.

"We accelerate, we decelerate," Onori says. "The battery will be charged, and discharged, some rest if you're at a traffic light."

Her lab's findings suggest that the traditional tests for battery life were unrealistically challenging, and Onori says ongoing work with real-world data is now confirming that. When they're actually driven, she says, EV batteries "age gracefully. Very gracefully."

Just like humans, she notes: "When we live a life with less stress, we live longer."

A decade plus … and counting 

So how long do EV batteries last? It's still too soon to put a precise number on it, because — as a group — the cars already on the road haven't yet reached the end of the S-curve, the point when they will start to show massive performance declines. In other words, they're not dead yet.

Meanwhile, battery technology keeps improving. The oldest EVs, like Hajjar's Model S, may not be the best indicator of how long newer EVs will last. Software systems to manage batteries have gotten more sophisticated. A lot of new EVs use a different battery chemistry — lithium iron phosphate or LFP — which lasts even longer than other lithium-ion batteries.

As Stephanie Valdez-Streaty, who follows EV trends for Cox Automotive, puts it: "These batteries are built to outlast the cars."

And there's one more wrinkle when it comes to figuring out the end of life for a normally-aging EV battery. They don't die abruptly, like an old engine cutting out. It's more that their range shrinks; they can only hold enough energy for shorter and shorter trips. Instead of shelling out for an expensive battery replacement, some EV owners might just put up with that limitation.

Thomas McVeigh, of Ontario, Canada, drives a 2014 BMW i3. That vehicle didn't have an impressive range even when it was new, and now it can only manage about 55 miles on a single charge in the winter. But it still looks great. It's pleasant to drive. It saves him on gas. Maintenance is wildly cheap for a 12-year-old vehicle, and especially for a BMW; his only real cost is new tires.

He's fine with its diminished range. And he's not inclined to put what he estimates would be a $6,000 battery into an aging car. Instead, maybe he'll pass it on to his kid. "Teenagers generally aren't going for long drives," he says.

Or maybe he'll keep it for himself, after all. "I mean," he says, "I love that car."

Copyright 2026 NPR

This week the Getty Villa Museum will begin offering a rare look at scrolls from its ancient Egyptian “Book of the Dead” collection.

The collection of 19 manuscripts written on scrolls of papyrus and linen fragments are fragile, with one of them dating back nearly 3,500 years. Because of that, the materials are not usually on display to the public and the gallery will be carefully lit, temperature and humidity-controlled.

Sara Cole, associate curator of antiquities, told LAist that a lot of the language in the spells is written in first person speech for the deceased spirit to say while navigating the afterlife.

“One of my favorite phrases that I have on a wall of the gallery is ‘May I join with the stars that call out to me in the night boat,’” Cole said.

Cole explained that the manuscripts have been in the Getty’s collection since 1983, when they were donated by a bookseller in New York, who got them from the private collection of a British rare manuscript collector.

Egyptian mummy wrapping of Petosiris, Son of Tetosiris, from around 332–100 BCE.

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A years-long project is underway to translate the spells and rituals immortalized in the Getty's “Book of the Dead” scrolls and fragments, with a “large publication” in the works, Cole said.

The exhibition will feature four papyri belonging to women named Webennesre, Ankhesenaset, and Aset. Cole said “Book of the Dead” materials belonging to women are rare, because most were reserved for men.

Twelve of the manuscripts in the exhibition are written on fragments of linen that were used to wrap the mummified remains of the people they belonged to. Cole said she hopes visitors will understand that the material was very intimately associated with peoples’ burials.

Cole said her goal is to foreground the identities of the people who owned the scrolls, including two women who were ritual singers for the god Amun in the ancient city of Thebes.

“We see in these manuscripts the ancient Egyptians really grappling with this question and thinking about what might happen when we die... And I think that’s something we can all connect with and understand,” she said.

Cole recommends visiting the Getty’s website for a calendar of curator tours and special events related to the exhibition, including an upcoming talk by an Egyptologist.

The “The Egyptian Book of the Dead” at the Getty Villa runs from March 4 to Nov. 30.

The Supreme Court hears arguments Monday in an important gun case that has united an array of strange bedfellows, from conservative gun rights groups to liberal civil liberties groups. At issue is a federal law making it a crime for drug users to possess a firearm. It's the same law that was used to prosecute then-President Joe Biden's son for illegal gun possession — only this case involves marijuana use and gun ownership.

The briefs in the case present diametrically different versions of the facts. On one side, the Trump administration portrays Ali Danial Hemani as a drug dealer and someone with terrorist ties and a marijuana habit. Importantly, he is not being prosecuted for any of those offenses, however. Rather, the government has charged Hemani with violating a federal gun law that bars people with drug addiction from possession of firearms, a crime punishable by up to 15 years in prison.

The 5th U.S. Circuit Court of Appeals threw out the indictment, declaring that the federal law violates Hemani's Second Amendment right to own a gun.

The Justice Department appealed to the Supreme Court, arguing that because Hemani admitted to FBI agents that he used marijuana several times a week, he is a "persistent" drug user, thus rendering illegal the possession of the gun he bought legally and keeps securely in his home.

Hemani's lawyer, law professor Naz Ahmad of the City University of New York, paints a very different picture of her client. Hemani, she notes, was born and raised in Texas, "attended high school there, played on the high school football team, attended the University of Texas at Arlington, was an honor student there" and is "a really valued member of his local religious community."

"The Second Amendment doesn't support disarming and prosecuting somebody for mere possession of a firearm if they happen to have used marijuana occasionally," she says.

"That's a mismatch," she adds, especially at a time when 40 states, to one degree or another, have legalized marijuana use.
 
If the court rules against Hemani, she says, "the statute could apply to anybody. It could apply to somebody who uses like a marijuana sleep gummy."

The Trump administration's advocate, Solicitor General D. John Sauer, acknowledges that under the Supreme Court's landmark gun decision four years ago, the government has a heavy burden to show that modern-day gun laws are analogous to laws in place at the nation's founding. But he contends that the statute used to prosecute Hemani is both justified and analogous to founding-era laws and practices.

Specifically, in his Supreme Court brief, Sauer points to the harsh punishments imposed during the founding era on "habitual drunkards." And he contends that both Congress and the states have restricted firearm possession by illegal drug users "for as long as that social evil has plagued America."

That said, for the most part, the case seems to have united groups from left to right, from civil liberties groups to gun rights advocates.

"It's outrageous that they tried to get him on a marijuana gun charge," says Aidan Johnston, director of federal affairs for Gun Owners of America. He contends that the government is seeking to criminalize conduct that was widely tolerated at the founding.

"It was the universal custom of founding-era militias to imbibe," he notes, adding that Thomas Jefferson and other famous Americans "possessed firearms while being users of drugs ranging from opium to cocaine."

At the opposite end of the ideological spectrum are a variety of gun-safety groups that fear that if Hemani wins his case, it could gouge a hole in the existing system of national background checks.

Under the current system, dealers are required to first clear the sale by submitting the buyer's name to the FBI's National Instant Criminal Background Check System. The hitch is that there is a very small window in which to complete the check — just three days. And gun-safety groups say that anything that makes the rules more complicated and unclear could really screw up the system.

"We're saying" to the court, "whatever you do, it's essential that you keep the rules clear so that in that short window, federal agencies can give a quick answer to the dealers," says Douglas Letter of the Brady Center to Prevent Gun Violence. 

An adverse ruling, he says, would mess up the criminal background check process. That, in turn, would result in "so many, particularly women and children, who will die if that kind of a system is not in place."

A decision in the case is expected by summer.
Copyright 2026 NPR

Longtime administrator Andres Chait addressed the public as acting superintendent of Los Angeles Unified School District for the first time Monday.

“ We remain committed to academic excellence and student wellbeing,” he said ahead of a closed board meeting to discuss his employment and ongoing labor negotiations with district unions. “Our core values remain unchanged. I know transitions can create uncertainty, but our district is strong.”

After meeting for about four hours, the Board recessed the closed-door convening until March 10 at 9 a.m., the same day as the next regularly scheduled meeting.

Chait has worked for the district for nearly three decades, most recently as chief of school operations. His responsibilities included overseeing school safety, athletics and the district’s office of emergency management.

The LAUSD board voted unanimously Friday to place Superintendent Alberto Carvalho on paid administrative leave “pending investigation,” and appointed Chait in his stead. FBI agents searched Carvalho’s home in San Pedro and district office Wednesday.

A justice department spokesperson said the agency had a court-authorized warrant but declined to provide additional details. The reason for the searches is unknown.

Listen to Chait's full comments