Every six hours, at his home in the high desert outside Kingman, Arizona, midway between Phoenix and Las Vegas, Brian Goss downloads the latest blocks from the bitcoin blockchain via satellite. He receives the transmission through a dish he installed this January; it arrives with messages, too---tweets, blogs, odes to Satoshi---sent by bitcoiners around the world. Goss rebroadcasts them from a radio device perched on his roof, in case the neighbors care to tune in.

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A group of workers at the ecommerce company Wayfair staged a walkout in Boston Wednesday afternoon, to protest the company’s sale of furniture to a government contractor that manages detention centers amid an ongoing humanitarian crisis at the southern border. The walkout is taking place in Copley Square, near Wayfair’s headquarters.

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In these days of anti-tech ire, it’s a popular cocktail hour topic: How much is Facebook making off my data? Last year, I spent a month trying to find out, hawking my personal data on blockchain-based marketplaces. I came away with $0.003. On Monday, when Senator Mark Warner (D-Virginia) announced a proposal to force tech companies to tell users the value of their data, he was slightly more generous, ballparking the average at $5 a month.

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Consumers are hungry for data. To give it to them, mobile carriers say they need access to more of the wireless spectrum that carries cellular data, broadcast programming, and all other wireless signals. Carriers complain that the parts of the spectrum reserved for smartphone use are increasingly crowded, at least in urban areas.

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Every stranger’s face hides a secret, but the smiles in this crowd conceal a big one: These people do not exist. They were generated by machine learning algorithms, for the purposes of probing whether AI-made faces can pass as real. (Call it a Turing beauty contest.

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San Francisco said goodbye to e-cigarettes, an airplane maker went all-electric, and a Minnesota cop was awarded money because of her snooping colleagues. Here's the news you need to know, in two minutes or less.

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On Tuesday the San Francisco Board of Supervisors voted unanimously to suspend the sale and delivery of electronic cigarettes until the products are approved by the Food and Drug Administration. The legislation, which still requires a second vote and the mayor’s signature, would go into effect seven months after being passed, giving e-cigarette makers until early next year to win approval from the FDA.

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Alphabet, Google’s parent company, faced an onslaught of 14 independent shareholder proposals during its annual meeting on Wednesday, most criticizing the concentration of power in the hands of a few executives and all demanding some kind of structural change to make the company more accountable—to workers, shareholders, Chinese dissidents, or prospective neighbors of Google’s planned campus in San Jose.

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One evening in April, a California law enforcement officer was browsing Facebook when she saw a post from the National Center for Missing and Exploited Children with a picture of a missing child. The officer took a screenshot of the image, which she later fed into a tool created by nonprofit Thorn to help investigators find underage sex-trafficking victims. The tool, called Spotlight, uses text- and image-processing algorithms to match faces and other clues in online sex ads with other evidence.

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Near the end of 2017, on a Dominican Republic beach with his family, Facebook executive David Marcus wrestled with a question he’d been pondering since his previous job as president of PayPal. How would you build the internet of money? A friction-free global digital currency would be a boon for the many people with mobile phones but no access to banking.

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