Las Vegas hosted its first in-person convention this week since the pandemic. It’s called World of Concrete, which normally attracts some 60,000 engineers, architects, masons and contractors. Not quite a full turnout this year, but Marketplace senior reporter Matt Levin was there. Marketplace’s Amy Scott asked Levin what kind of tech he’s seen there.

How tech might clean up concrete

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On this week’s show, the United Kingdom is cracking down on makers of sexually explicit deepfakes. We’ll look at what penalizing the practice could mean for the victims. Then, the creator economy has the attention of millions of subscribers, but also venture capital. Why content creators like Dude Perfect on YouTube and other startups are attracting so much investment right now. But we begin with Amazon. The e-commerce giant’s Just Walk Out technology lets shoppers scan an app when they enter a store so they can leave with their purchases without paying at a register. This week, Amazon said there’s growing interest in the technology among retailers outside its empire. Yet the company is reportedly reducing the use of Just Walk Out in its own brick-and-mortar stores. Marketplace’s Lily Jamali spoke with Natasha Mascarenhas, reporter at The Information, for her take on these stories.

Tech Bytes — Week in Review: Amazon, deepfakes & the creator economy



When you think about gin, what tastes comes to mind? Pine? Maybe citrus or coriander? It can vary quite a bit because unlike some spirits, gin is very lightly regulated. Distillers can throw in all kinds of flavors and call the result “gin” as long it has some minimum requirements. In the U.S., gin is gin as long as the flavor is derived from juniper berries and alcohol by volume is at least 40%. In the European Union, the minimum ABV is 37.5%. But researchers in Edinburgh, Scotland, recently identified the exact elements that define gin using nuclear magnetic resonance spectroscropy. Think of it as something like an MRI scan that lets scientists create a flavor “fingerprint.” The new technique could have big implications for this very old industry. Marketplace’s Lily Jamali spoke with Eve Thomas, who wrote about it for Wired, to learn more.



How science could disrupt the gin industry

When the chemical company DuPont unveiled Teflon in 1946, nonstick pots and pans seemed like a miracle. We now know their coatings contain “forever chemicals,” or PFAS, which don’t break down. These compounds are not only in cookware but in clothing, cosmetics and more — and they contaminate the water millions of us drink. Research shows there’s no safe level of exposure. As the EPA rolls out new limits on PFAS in drinking water, Marketplace’s Lily Jamali asked Tasha Stoiber, senior scientist at the Environmental Working Group, about the tech used to filter it.

Scientists try to prevent “forever chemicals” from being a forever problem


President Joe Biden won Arizona in 2020 by a razor-thin margin, flipping the state blue for the first time in more than 20 years. As a result, Arizona became a hotbed of election misinformation and conspiracy theories, as false claims of a stolen election led to protests outside voting centers, a GOP-backed ballot audit and threats against election workers. Now, with just over 200 days until the 2024 election, experts warn that artificial intelligence could supercharge misinformation and disinformation in this year’s race. So how are election officials in a state that has already been in the trenches preparing for another battle over facts? In this episode of “Marketplace Tech’s” limited series, “Decoding Democracy,” Lily Jamali and Kimberly Adams look back at what happened in Arizona during the last presidential election and how the state became entangled in conspiracy theories. Plus, we hear from Arizona Secretary of State Adrian Fontes about how his office plans to combat AI-charged misinformation this year.


How Arizona is preparing for AI-powered election misinformation


The programming language known as COBOL turns 65 this year. We couldn’t help noticing that’s right around retirement age, but COBOL is nowhere near retirement. It remains a mainstay of IT operations at U.S. government agencies, businesses and financial institutions. Yet the programming language, which is older than the Beatles, is no longer taught at most universities. Glenn Fleishman is a freelance tech journalist who has written about this aging slab of digital infrastructure. Marketplace’s Lily Jamali asked him whether our continuing reliance on COBOL is a problem.
 


How tech might clean up concrete

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