Denmark's PostNord will end centuries of letter delivery as digitalization and high postage costs make physical mail nearly obsolete. The BBC reports: The steep decline in letter volumes has been driven largely by digitalization, and PostNord announced in March that it will cease letter services at the end of the year. It will bring to an end four centuries of letter deliveries by the state-owned operation. A third of its workforce is being let go, as it sheds 2,200 positions in its loss-making letter arm. Instead it will focus on its profitable parcel business, creating 700 new roles. "Danes hardly receive any letters anymore. It's been going down for years and years," says Kim Pedersen, chief of PostNord Denmark. "They're receiving one letter a month on average, it's not a lot." "On the contrary, Danes love to shop online," he adds. "Global e-commerce is growing significantly, and we are moving with it."

Fifteen years ago, PostNord operated several enormous letter-sorting facilities, but now there's just one on the western outskirts of Copenhagen. Since 2000, the volume of letters the business handles has declined by more than 90%, from around 1.4 billion to 110 million last year, and it continues to fall rapidly. As PostNord prepares to cease letter deliveries, 1,500 of its red post boxes are being removed from Danish streets. However, few locals in the capital appear to use them much.

From email and cashless mobile payments, to digital health cards carried by smartphone, there's an app for almost everything in Denmark - and it's one of the world's most digitalized nations, second only to South Korea, according to the OECD's 2023 Digital Government Index. The Danish government has embraced a "digital by default" policy, and for more than a decade correspondence with the public has been carried out electronically. "We are facing this natural evolution of a digitalized society, earlier than maybe some other countries," Mr Pedersen explains. "In Denmark, we are maybe five or 10 years ahead."

The high cost of sending a letter in Denmark is also a contributing factor behind its decline. In 2024, a new law opened up the postal market to private competition and took away its exemption from the country's 25% rate of VAT, so the price of a PostNord stamp jumped to 29 Danish krone ($4.55) per letter. "That made [volumes] drop even further faster," Mr Pedersen points out. The report notes that private firm DAO will take over nationwide letter deliveries in Denmark after PostNord exits. However, concerns remain that elderly citizens and rural residents may struggle with fewer post boxes and reduced service quality. Both the advocacy group DaneAge and the 3F Postal Union warn the transition could disproportionately affect vulnerable populations.

The Metropolitan Police has confirmed its first permanent installation of live facial recognition (LFR) cameras is coming this summer and the location will be the South London suburb of Croydon. From a report: The two cameras will be installed in the city center in an effort to combat crime and will be attached to buildings and lamp posts on North End and London Road. According to the police they will only be turned on when officers are in the area and in a position to make an arrest if a criminal is spotted. The installation follows a two-year trial in the area where police vans fitted with the camera have been patrolling the streets matching passersby to its database of suspects or criminals, leading to hundreds of arrests. The Met claims the system can alert them in seconds if a wanted wrong'un is spotted, and if the person gets the all-clear, the image of their face will be deleted.

The Washington Post visits one of over 100 tide-tracking stations around the U.S. -- Georgia's Fort Pulaski tide gauge: Since 2010, the sea level at the Fort Pulaski gauge has risen by more than 7 inches, one of the fastest rates in the country, according to a Washington Post analysis of National Oceanic and Atmospheric Administration data for 127 tide gauges. Similar spikes are affecting the entire U.S. Southeast -- showing a glimpse of our climate future... [I]n the previous 30 years, the ocean rose about 3.7 inches. And the deluge stretches all across the South and the Gulf Coast; over the past 14 years, sea levels in the U.S. South have risen twice as fast as the global average...

Scientists suspect part of that is because of the Gulf Stream -- a long band of warm water that follows the coast up from the equator and then, near Cape Hatteras, turns out into the Atlantic Ocean. The waters of the Gulf Stream and the Gulf of Mexico are warming faster than other parts of the Atlantic, boosting sea levels. "The Gulf of Mexico has warmed exceptionally fast over the past decade and a half," Piecuch said. "It's uncontroversial." But scientists have puzzled over where all that heat is coming from... [T]he current heat could be part of long-term variations in ocean currents, and not a clear signal of climate change. But the fact that the change is linked to heat -- at the same time as the entire ocean is taking on excess heat from global warming -- makes some experts suspicious. "This particular mechanism does not immediately suggest it's just natural variability," [said Ben Hamlington, a research scientist who leads NASA's sea level change team].

For now, sea levels in the Southeast are surging -- and they provide an early picture of what most of the United States, and the rest of the world, will experience as oceans rise... On Tybee Island -- whose population of 4,000 swells to over 100,000 during the summer months -- leaders have gotten used to the constant fight against the waves. Five or six times a year, high tides sweep over the one road that connects the island to the mainland, cutting residents off from services. By 2050, scientists estimate, those high tides will happen 70 days a year. With the help of the U.S. Army Corps of Engineers, the city has built dunes to protect vacation homes and local storefronts from the rising water; many homeowners have also raised their properties high up into the air. In Savannah, small businesses and city streets are washed in floods even on bright, sunny days -- thanks to high tides that surge into the drainage system. The city estimates that it will cost $400 million to update the stormwater infrastructure over the next two decades. So far, it has raised $150 million...

Other states and cities will soon see the same effects. NASA projections show that in the coming decades, many cities in the Northeast will experience up to 100 more days of high-tide flooding each year.
"Some researchers think that the Southeast acceleration may be linked to long-term weather patterns in the Atlantic Ocean like the North Atlantic Oscillation.

"If so, the trend could switch in the coming decades -- with areas of the Northeast seeing rapid sea level rise while the trend in the Southeast slows down."

Wednesday Cuba was hit by a major hurricane which took down its entire power grid again, this time for about 24 hours, according to CNN: Videos of the aftermath showed power infrastructure turned into a mangled mess and power poles down on streets. Hundreds of technicians were mobilized Thursday to reestablish power connections, according to state media... Operations at two electrical plants were partially restored and parts of eastern and central Cuba had electricity back up by Thursday afternoon, state media reported... The country's power grid has collapsed multiple times, including when Hurricane Oscar hit in October and killed at least 7 people.
In the capital of Havana, where 2 million people live, power had been restored to less than 20% of the city by late Friday afternoon, . "Authorities had not yet given an estimate for when power would be fully restored..."

Then tonight, CNN reported: A 6.8 magnitude earthquake struck off the coast of eastern Cuba on Sunday, causing material damage in several regions as the island continues to recover from widespread blackouts and the impact of two hurricanes over the past few weeks. The earthquake was reported about 39 km (24 miles) south of Bartolomé Masó before noon local time, about an hour after a 5.9 magnitude quake rocked the area, the United States Geological Survey (USGS) said.

"There have been landslides, damage to homes and power lines," Cuban President Miguel Díaz-Canel said, adding that authorities are evaluating the situation to start recovery efforts.

An anonymous reader quotes a report from the Associated Press: The Postal Service's new delivery vehicles aren't going to win a beauty contest. They're tall and ungainly. The windshields are vast. Their hoods resemble a duck bill. Their bumpers are enormous. "You can tell that (the designers) didn't have appearance in mind," postal worker Avis Stonum said. Odd appearance aside, the first handful of Next Generation Delivery Vehicles that rolled onto postal routes in August in Athens, Georgia, are getting rave reviews from letter carriers accustomed to cantankerous older vehicles that lack modern safety features and are prone to breaking down -- and even catching fire.

Within a few years, the fleet will have expanded to 60,000, most of them electric models, serving as the Postal Service's primary delivery truck from Maine to Hawaii. Once fully deployed, they'll represent one of the most visible signs of the agency's 10-year, $40 billion transformation led by Postmaster General Louis DeJoy, who's also renovating aging facilities, overhauling the processing and transportation network, and instituting other changes. The current postal vehicles -- the Grumman Long Life Vehicle, dating to 1987 -- have made good on their name, outlasting their projected 25-year lifespan. But they're well overdue for replacement. Noisy and fuel-inefficient (9 mpg), the Grummans are costly to maintain. They're scalding hot in the summer, with only an old-school electric fan to circulate air. They have mirrors mounted on them that -- when perfectly aligned -- allow the driver to see around the vehicle, but the mirrors constantly get knocked out of alignment. Alarmingly, nearly 100 of the vehicles caught fire last year, imperiling carriers and mail alike.

The new trucks are being built with comfort, safety and utility in mind by Oshkosh Defense in South Carolina. Even tall postal carriers can stand up without bonking their heads and walk from front to back to retrieve packages. For safety, the vehicles have airbags, 360-degree cameras, blind-spot monitoring, collision sensors and anti-lock brakes -- all of which are missing on the Grummans. The new trucks also feature something common in most cars for more than six decades: air conditioning. And that's key for drivers in the Deep South, the desert Southwest and other areas with scorching summers. [...] Brian Renfroe, president of the National Letter Carriers Association, said union members are enthusiastic about the new vehicles, just as they were when the Grummans marked a leap forward from the previous old-school Jeeps. He credited DeJoy with bringing a sense of urgency to get them into production. "We're excited now to be at the point where they're starting to hit the streets," Renfroe said.

An anonymous reader quotes a report from Fortune: On February 1st last year, Montana residents gawked upwards at a large white object hovering in the sky that looked to be another moon. The airborne object was in fact a Chinese spy balloon loaded with cameras, sensors, and other high-tech surveillance equipment, and it set off a nationwide panic as it drifted across the midwestern and southern United States. How much information the balloon gathered -- if any -- remains unknown, but the threat was deemed serious enough that an F-22 U.S. Air Force jet fired a Sidewinder missile at the unmanned balloon on a February afternoon, blasting it to pieces a few miles off the coast of South Carolina. At the same time that the eyes of Americans were fixed on the Chinese intruder in the sky, around 30 cars owned by Chinese companies and equipped with cameras and geospatial mapping technology were navigating the streets of greater Los Angeles, San Francisco, and San Jose. They collected detailed videos, audio recordings, and location data on their surroundings to chart out California's roads and develop their autonomous driving algorithms.

Since 2017, self-driving cars owned by Chinese companies have traversed 1.8 million miles of California alone, according to a Fortune analysis of the state's Department of Motor Vehicles data. As part of their basic functionality, these cars capture video of their surroundings and map the state's roads to within two centimeters of precision. Companies transfer that information from the cars to data centers, where they use it to train their self-driving systems. The cars are part of a state program that allows companies developing self-driving technology -- including Google-spinoff Waymo and Amazon-owned Zoox -- to test autonomous vehicles on public roads. Among the 35 companies approved to test by the California DMV, seven are wholly or partly China-based. Five of them drove on California roads last year: WeRide, Apollo, AutoX, Pony.ai, and DiDi Research America. Some Chinese companies are approved to test in Arizona and Texas as well.

Fitted with cameras, microphones, and sophisticated sensors, self-driving cars have long raised flags among privacy advocates. Matthew Guariglia, a policy analyst at the digital rights nonprofit Electronic Frontier Foundation, called self-driving cars "rolling surveillance devices" that passively collect massive amounts of information on Americans in plain sight. In the context of national security however, the data-hungry Chinese cars have received surprisingly little scrutiny. Some experts have compared them to Chinese-owned social media site TikTok, which has been subjected to a forced divestiture or ban on U.S. soil due to fears around its data collection practices threatening national security. The years-long condemnation of TikTok at the highest levels of the U.S. government has heightened the sense of distrust between the U.S. and China.

Some Chinese self-driving car companies appear to store U.S. data in China, according to privacy policies reviewed byFortune -- a situation that experts said effectively leaves the data accessible to the Chinese government. Depending on the type of information collected by the cars, the level of precision, and the frequency at which it's collected, the data could provide a foreign adversary with a treasure trove of intelligence that could be used for everything from mass surveillance to war planning, according to security experts who spoke withFortune. And yet, despite the sensitivity of the data, officials at the state and federal agencies overseeing the self-driving car testing acknowledge that they do not currently monitor, or have any process for checking, exactly what data the Chinese vehicles are collecting and what happens to the data after it is collected. Nor do they have any additional rules or policies in place for oversight of Chinese self-driving cars versus the cars in the program operated by American or European companies. "It is literally the wild, Wild West here," said Craig Singleton, director of the China program at the Foundation for Defense of Democracies, a conservative-leaning national security think tank. "There's no one in charge."

President Emmanuel Macron is partially blaming video games for the spread of violence in France following the shooting death of a teenager during a police traffic stop in a Paris suburb last week. NPR reports: "It sometimes feels like some of them are experiencing, on the streets, the video games that have intoxicated them," Macron said in a press conference on July 1. He added that protesters are using Snapchat and TikTok to organize themselves and spread "a mimicking of violence, which for the youngest leads to a kind of disconnect from reality." Concerns that video games promote shootings, massacres or rioting are now about half a century old; it has been traced back to the 1976 release of Death Race, an arcade video game which put players behind the wheel of a car to mow down humanoid figures for points. The argument gained renewed traction in the 1990s with the release of much more realistic first-person shooter games. It is an old bogeyman that politicians have latched onto in the wake of horrific tragedies. But it has become less common as troves of studies have largely concluded there is no causal link between video games and violent behavior.

Christopher Ferguson, a professor at Stetson University in Florida who has studied the impact of such games on the public, said he is surprised at Macron's comments. The president is 45 years old and belongs to a generation raised with video games, so "seeing him mention this is almost anachronistic," Ferguson said, sounding perplexed. "The evidence is very clear. Whatever may be going on in France, whatever violence is occurring, it certainly is not due to violence in video games." Decades of research, especially long-term experiments spanning decades, have consistently found "that playing violent video games, do not cause even prank-level aggressive behaviors, let alone violent crimes," Ferguson said. He also noted that the overall violent crime in the U.S. dropped significantly between 1993 and 2020, the same period during which violent video games soared in popularity.

And it's not just in the United States. A 2019 study out of Oxford University determined that early violent video game playing among British teenagers does not predict serious or violent criminal behavior later in life. According to Ferguson, if video games were the cause of rampant violence, then countries like Japan, South Korea and the Netherlands, which consume more violent video games per capita, would be rife with bloodshed. "Instead, they're three of the most peaceful countries on the planet in terms of violent crime," he said. "You could wave a magic wand and take all these people's video games away, and that's not going to have any effect in any way going to help their lives and reduce their aggression," Ferguson said. So why do politicians turn to the familiar refrain? Ferguson said it is a way for elected leaders to shift the blame away from failing government policies. "It gets people talking about the wrong thing. They're thinking about video games. They're not thinking about gun control or whatever inequalities are happening in France," Ferguson said.

In the heart of Silicon Valley, the city of Mountain View, California "just approved its biggest development ever," reports SFGate, "and it's for exactly the company you'd expect." Google got the go-ahead to build a 153-acre mixed-use neighborhood just south of its headquarters in north Mountain View on June 13, with unanimous city council approval.

Plans for the 30-year project, which will supplant the Google offices and parking lots currently in the area, include over 3 million square feet of office space and 7,000 residential units... Originally, the developers planned to dedicate 20% of the new housing to affordable units, but the approved plan sets aside only 15% for lower- and middle-income housing. Google lowered the target to make the project viable in an uncertain economic climate, a spokesperson told SFGATE. This past January, the firm laid off 12,000 workers.

The new development sounds an awful lot like the "company towns" of 1900-era American settlement — firms ran all the stores and housing for their workers — but a Google spokesperson said the new project's restaurants, housing and services would serve the broader Mountain View community. Along with the housing and Google office space, the plans include 26 acres of public parks and open space, up to 288,990 square feet of ground-floor commercial space, land for a school, new streets and a private utility system. The developers have 30 years to complete the project, as long as Google and Lendlease hit permit benchmarks and complete other terms within the first 15.

Slashdot reader atcclears quotes the Wall Street Journal: Hailed as the Saudi Arabia of lithium, this California-sized chunk of terrain [in Salar de Atacama, Chile] accounts for some 55% of the world's known deposits of the metal, a key component in electric-vehicle batteries. As the Chinese EV giant BYD Co. recently learned, tapping into that resource can be a challenge.

Earlier this year, after BYD won a government contract to mine lithium, indigenous residents took to the streets, demanding the tender be canceled over concerns about the impact on local water supplies. In June, the Chilean Supreme Court threw out the award, saying the government failed to consult with indigenous people first.... Similar setbacks are occurring around the so-called Lithium Triangle, which overlaps parts of Chile, Bolivia and Argentina. Production has suffered at the hands of leftist governments angling for greater control over the mineral and a bigger share of profits, as well as from environmental concerns and greater activism by local Andean communities who fear being left out while outsiders get rich.

At a time of exploding demand that has sent lithium prices up 750% since the start of 2021, industry analysts worry that South America could become a major bottleneck for growth in electric vehicles. "All the major car makers are completely on board with electric vehicles now," said Brian Jaskula, a lithium expert at the U.S. Geological Survey. "But the lithium may just not be enough."
Meanwhile, a chemical engineering professor at Indiana's Purdue University has spent years looking for an alternative to lithium batteries, and their researchers are now testing sodium carbonate and the possibility of sodium ion batteries.

Seoul is reining in tech giants Kakao and Naver to save small business -- but it might be too little, too late. From a report: South Korea has left hard cash in the dust. The country is a virtually friction-free, digital payments dream, where just a fraction of purchases are done in notes and coins. Park Se-hwa's bookstore, on a commercial street in Seoul, is a holdout. Inside the narrow door, a sign reads: "The best way to support the bookstore is to pay cash." She bristles every time she processes a purchase by card, since it means she has to pay a fee to the bank, taking a slice out of the already thin income she brings in from book sales. Park refuses, on principle, to use payments services from local tech giants like KakaoPay or Naver Pay. She won't build a platform on Amazon, the e-commerce behemoth that built itself up by reinventing the publishing world. "Those big companies are the public enemy of booksellers," she said. Park, 31, has operated her bookstore for a little more than a year. Her first vocation out of college was in the national Air Force, working seven-hour shifts monitoring radar for signs of North Korean missile launches. She started again as an entrepreneur after spending years in a series of unfulfilling jobs, like an increasing number of young, educated Koreans.

With South Koreans' buying activity moving almost entirely online, and the margins of small businesses contracting, she worries that the texture is disappearing from Seoul's streets. "If you look in any new area, it's always just chain stores that open, the same corporate convenience stores and coffee shops. Independent stores can't compete with them," she told Rest of World. Park may seem an anomaly, but she isn't. Her fears reverberate as high up as South Korea's lawmakers and its steely antitrust commission, who have spent this year attempting to rein in the country's vastly powerful tech giants. Kakao and Naver, both multibillion-dollar, publicly-traded empires, are the main targets: They have rapidly expanded their tentacles into South Koreans' digital lives in a way that uncomfortably mirrors the country's previous generation of conglomerates, like Samsung and LG. The government worries that their growth is coming at the sacrifice of the country's small businesses, who they say are being crushed with fees and impossibly high levels of online competition. Over the second half of this year, the battle with regulators has intensified. Both Naver and Kakao recently backpedalled on plans to expand their fintech services when the Financial Services Commission abruptly tightened standards. As the companies' jitters mounted, KakaoPay twice delayed its plans for a stock debut, infecting potential investors with concern. A total of eight different bills, proposed by lawmakers from both main parties, are pending in the legislature. They look to impose stricter standards on what kinds of fees online platforms can charge users, how much they can charge advertisers, and other measures intended to rein in their growth.

An anonymous reader quotes a report from Ars Technica: Samsung Group's leader, Jay Y. Lee, is out of jail on parole today. Lee was serving a 30-month sentence for his role in "Choi-gate," a major 2016 South Korean political scandal that brought down South Korean then-President Park Geun-hye. In 2017, Lee was originally sentenced to five years in jail after being found guilty of bribery, embezzlement, capital flight, and perjury. An appeal and retrial cut Lee's five-year prison sentence down to 30 months after suspending the charges for bribery and embezzlement. Lee served 18 months of that sentence, and now he's out on parole.

Upon his release, Lee told reporters, "I've caused much concern for the people. I deeply apologize. I am listening to the concerns, criticisms, worries, and high expectations for me. I will work hard." Lee's release from prison is controversial. The pro-business side of South Korean politics wants to see Lee back on the streets because Samsung is a massive part of South Korea's economy, and jailing the leader has delayed major strategic decisions at the company. Civic groups say South Korea's business elite get a different set of rules from everyone else and that Lee's parole is the latest sign of that reality.

Samsung makes up anywhere from 10-20 percent of South Korea's GDP, depending on how the latest quarter is going. As the top dog at Samsung, Lee has the final say on major investments and acquisitions, and one of the big decisions he needs to make is where to build a $17 billion chip factory in the US. The plant could be operational as soon as October 2022, and with the world currently in the middle of a global chip shortage, there's pressure to get everything started. US businesses have even been lobbying South Korea to pardon Lee in the hopes that the deal would go through. Lee reportedly left prison to head to Samsung headquarters, but he still has more legal issues to deal with. In October, he will face another trial relating to the Samsung C&T merger, this time for accounting fraud and stock price manipulation.

Joseph Cox, reporting at Vice's Motherboard: One user travelled through a park a few blocks south of an Islamic cultural center. Roughly every two minutes, their phone reported their physical location. Another was next to a bank two streets over from a different mosque. A third person was at a train station, again near a mosque. Perhaps unbeknownst to these people, Salaat First (Prayer Times), an app that reminds Muslims when to pray, was recording and selling their granular location information to a data broker, which in turn sells location data to other clients. Motherboard has obtained a large dataset of those raw, precise movements of users of the app from a source. The source who provided the dataset was concerned that such sensitive information, which could potentially track Muslims going about their day including visiting places of worship, could be abused by those who buy and make use of the data. The company collecting the location data, a French firm called Predicio, has previously been linked to a supply chain of data involving a U.S. government contractor that worked with ICE, Customs and Border Protection, and the FBI.

The news about Salaat First, which has been downloaded more than 10 million times on Android, highlights not only the use of religious apps to harvest location data, but also the ease at which this sensitive information is traded in the location data industry. Motherboard is withholding some specifics about the dataset such as its exact size in order to protect the source, but the significance is clear: users of a Muslim-focused app are being tracked likely without their informed consent. "Being tracked all day provides a lot of information, and it shouldn't be usable against you, especially if you are unaware of it," the source said. Motherboard granted them anonymity to avoid repercussions from their employer.

China already has hundreds of millions of surveillance cameras in place, reports the Atlantic's deputy editor, and "because a new regulation requires telecom firms to scan the face of anyone who signs up for cellphone services, phones' data can now be attached to a specific person's face."

But the article also warns that when it comes to AI-powered surveillance, China "could also export it beyond the country's borders, entrenching the power of a whole generation of autocrats" and "shift the balance of power between the individual and the state worldwide..." The country is now the world's leading seller of AI-powered surveillance equipment.... China uses "predatory lending to sell telecommunications equipment at a significant discount to developing countries, which then puts China in a position to control those networks and their data," Michael Kratsios, America's CTO, told me. When countries need to refinance the terms of their loans, China can make network access part of the deal, in the same way that its military secures base rights at foreign ports it finances. "If you give [China] unfettered access to data networks around the world, that could be a serious problem," Kratsios said...

Having set up beachheads* in Asia, Europe, and Africa, China's AI companies are now pushing into Latin America, a region the Chinese government describes as a "core economic interest." China financed Ecuador's $240 million purchase of a surveillance-camera system. Bolivia, too, has bought surveillance equipment with help from a loan from Beijing. Venezuela recently debuted a new national ID-card system that logs citizens' political affiliations in a database built by ZTE.
* The article provides these additional examples:

• In Malaysia, the government is working with Yitu, a Chinese AI start-up, to bring facial-recognition technology to Kuala Lumpur's police...
• Chinese companies also bid to outfit every one of Singapore's 110,000 lampposts with facial-recognition cameras.
• In South Asia, the Chinese government has supplied surveillance equipment to Sri Lanka.
• On the old Silk Road, the Chinese company Dahua is lining the streets of Mongolia's capital with AI-assisted surveillance cameras.
• In Serbia, Huawei is helping set up a "safe-city system," complete with facial-recognition cameras and joint patrols conducted by Serbian and Chinese police aimed at helping Chinese tourists to feel safe.
• Kenya, Uganda, and Mauritius are outfitting major cities with Chinese-made surveillance networks...

Yesterday as America celebrated its Independence Day, the Washington Post reports something unusual happened at the historic Civil War battefield at Gettysburg: For weeks, a mysterious figure on social media talked up plans for antifa protesters to converge on this historical site on Independence Day to burn American flags, an event that seemed at times to border on the farcical... There would be antifa face paint, the person wrote, and organizers would "be giving away free small flags to children to safely throw into the fire."

As word spread, self-proclaimed militias, bikers, skinheads and far-right groups from outside the state issued a call to action, pledging in online videos and posts to come to Gettysburg to protect the Civil War monuments and the nation's flag from desecration. Some said they would bring firearms and use force if necessary. On Saturday afternoon, in the hours before the flag burning was to start, they flooded in by the hundreds — heavily armed and unaware, it seemed, that the mysterious Internet poster was not who the person claimed to be. [Alternate URLs here and here.]

Biographical details — some from the person's Facebook page and others provided to The Washington Post in a series of messages — did not match official records. An image the person once posted on a profile page was a picture of a man taken by a German photographer for a stock photo service... The episode at Gettysburg is a stark illustration of how shadowy figures on social media have stoked fears about the protests against racial injustice and excessive police force... Armed vigilantes lined the streets of small Idaho towns last month after false claims circulated online about antifa... Similar hoaxes have befallen towns in New Jersey, South Dakota and Michigan in recent weeks.

It is not always clear who has made these false claims and why, whether they seek to advance a political agenda, antagonize people with whom they disagree or achieve some other goal. Social media companies have in recent weeks shut down a handful of fake accounts created by white supremacist groups posing as antifa operatives in a bid to undermine peaceful protests.
The Post reached Twitter and Facebook, who shut down the accounts last week, "saying the person behind them had manipulated the platform by creating multiple accounts with overlapping content in an effort to amplify their messaging." But by then the counter-protests had already attracted hundreds of supporters.

"An official at Facebook said the person appeared to be operating the accounts from inside the United States."

An elderly woman with no travel history. An unexpected flare-up in a nightclub. A swelling cluster in towns near international borders with no discernible source. After containing their outbreaks through measures from strict lockdowns to rapid testing regimes, the Asian economies that have seen some of the most success quelling the coronavirus -- Hong Kong, South Korea and China -- are now facing resurgences that underscore how it may be nearly impossible to eradicate it. From a report: It's a painful reminder that as countries open up again and people resume normal life, untraceable flare-ups are likely -- even after an extended lull in cases. Scientists have warned that the disease may never go away, because it lurks in some people without causing any outward signs of sickness. "Given the asymptomatic population, these cases are going to emerge from unexpected sources," said Nicholas Thomas, an associate professor in public health at the City University of Hong Kong. "It is inevitable that the restarting of societies is going to lead to more cases emerging." In Hong Kong, a 66-year-old patient with no recent travel history ended the city's much-envied 23-day streak of zero local cases this week. Some of her family members have now been confirmed to be infected as well, and fears are growing that the woman may have seeded more infections as she moved around Hong Kong's dense city streets before being detected.

An anonymous reader quotes a report from The Verge: The day before University of Pennsylvania students were told that their college commencement would be held online, junior Andrew Guo thought of an alternative to holding the address over Zoom. Students could have a "Hey Day" and graduation inside Minecraft, just as a Japanese elementary school had organized days earlier. Quickly, "Penncraft" students began to recreate dormitories, food trucks, and local sculptures in-game. Makarios Chung, an early builder, measured buildings' dimensions and streets positions constantly to ensure their scale was as accurate as possible. The first day of building, students took an hour to decide the placement of one street. Their main goal was to have a completed campus, specifically Locust Street, for graduating seniors to walk down in-game now that COVID-19 ensured they wouldn't return to campus and complete this UPenn tradition.

Students from Boston University to UCLA, from South Louisiana Community College to Northwestern University, have recently created or resurrected Minecraft servers and shared their creations on Discord chats, in Facebook meme groups, and on Reddit threads. The boom of college Minecraft servers has begun. These servers have the express purpose of bringing students together and building, oftentimes focused on recreating their college campuses. Searches for Minecraft server hosting have peaked to unprecedented levels in the last few weeks, and thousands of students are discussing college servers, most notably on the Facebook group "Zoom Memes for Self Quaranteens." Smaller groups and clubs, like Bowdoin College's men's ultimate frisbee team or University of La Verne's debate team, have found ways to bond in survival mode servers after their practices and championships were canceled. Zoom isn't nearly enough, and it doesn't carry the ten years of memories that Gen Z has for Minecraft. "Come May there will be in-game graduations," writes Pearse Anderson. "Inspired by the aforementioned Japanese elementary school, Boston University seniors Rudy Raveendran and Warren Partridge created 'Quaranteen University.' This is a new server specifically made to host a Class of 2020 graduation for students from hundreds of different universities. 706 students from 278 institutions have signed up in the last week, and one mom has already emailed Raveendran asking how she can get an in-game seat to this massive ceremony on May 22nd."

The Metropolitan Police has announced it will use live facial recognition cameras operationally for the first time on London streets. From a report: The cameras will be in use for five to six hours at a time, with bespoke lists of suspects wanted for serious and violent crimes drawn up each time. Police say the cameras identified 70% of suspects but an independent review found much lower accuracy. Privacy campaigners said it was a "serious threat to civil liberties." Following earlier pilots in London and deployments by South Wales Police, the cameras are due to be put into action within a month. Police say they will warn local communities and consult with them in advance.

"When British police used facial recognition cameras to monitor crowds arriving for a soccer match in Wales, some fans protested by covering their faces," reports the Associated Press.

"In a sign of the technology's divisiveness, even the head of a neighboring police force said he opposed it."
The South Wales police deployed vans equipped with the technology outside Cardiff stadium this week as part of a long-running trial in which officers scanned people in real time and detained anyone blacklisted from attending for past misbehavior... The real-time surveillance being tested in Britain is among the more aggressive uses of facial recognition in Western democracies and raises questions about how the technology will enter people's daily lives. Authorities and companies are eager to use it, but activists warn it threatens human rights....

If the system flags up someone passing by, officers stop that person to investigate further, according to the force's website. Rights groups say this kind of monitoring raises worries about privacy, consent, algorithmic accuracy, and questions about about how faces are added to watchlists... The North Wales police commissioner, Arfon Jones, said using facial recognition to take pictures of soccer fans was a "fishing expedition." He also raised concerns about false positives....

"In laboratory conditions it's really effective," said University of Essex professor Pete Fussey. He monitored the London police trials, which also used NEC's system, and found a different outcome on the streets. He co-authored a report last year that said only eight of its 42 matches were correct. The London program has since been suspended. "The police tended to trust the algorithm most of the time, so if they trust the computational decision-making yet that decision-making is wrong, that raises all sorts of questions" about the accountability of the machine, he said.
The article reports that 19,000 faces were scanned at a Spice Girls concert in May, and identified 15 people on a watchlist. Six of them were arrested.

Nine others had been identified incorrectly.

Hot power cables snake through tunnels and channel under cities all around the world. All it takes is a fan/air coil to capture that heat for buildings. Researchers and a power company in the UK calculate that the essentially free heat could warm thousands of London homes. An anonymous Slashdot reader shares a report from IEEE Spectrum: Underneath London's bustling streets lie several kilometers of 2.5-meter-wide concrete tunnels lined with power distribution cables that can reach blistering temperatures. To cool the tunnels, vertical shafts spaced out every kilometer or two supply fresh air and eject hot air out into the open. Researchers at London South Bank University (LSBU) want to put that waste heat to use. A typical 1.8-km tunnel stretch between ventilation shafts produces 400 kilowatts of heat, enough to heat 100 homes or a small commercial office, they have found in a preliminary analysis done with the city's electricity network operator UK Power Networks.

This heat recovery scheme would have a third of the carbon emissions of a gas boiler delivering the same amount of heat. The researchers presented this work at the International Congress of Refrigeration in August. [...] A heat exchanger installed at the supply shaft reduced cable and tunnel air temperatures by 8 degrees Celsius, but the amount of heat recovered varied from about 100 kilowatts in colder months to 460 kW in high heat. Installed at the exhaust shaft, the system produced around 400 kW during all six months.

An estimated 4 billion people in the world lack a physical address. Researchers at the MIT Media Lab and Facebook are now proposing a new way to address the unaddressed: with machine learning. From a report: The team first trained a deep-learning algorithm to extract the road pixels from satellite images. Another algorithm connected the pixels together into a road network. The system analyzed the density and shape of the roads to segment the network into different communities, and the densest cluster was labeled as the city center. The regions around the city center were divided into north, south, east, and west quadrants, and streets were numbered and lettered according to their orientation and distance from the center.

When they compared their final results with a random sample of unmapped regions whose streets had been labeled manually, their approach successfully addressed more than 80% of the populated areas, improving coverage compared with Google Maps or OpenStreetMaps. This isn't the only way to automate the creation of addresses. The organization what3words generates a unique three-word combination for every 3-by-3-meter square on a global grid. The scheme has already been adopted in regions of South Africa, Turkey, and Mongolia by national package delivery services, local hospitals, and regional security teams. But Ilke Demir, a researcher at Facebook and one of the creators of the new system, says its main advantage is that it follows existing road topology and helps residents understand how two addresses relate to one another.