For months, the Chinese government has been putting pressure on big tech companies. It penalized the recently public ride-hailing company Didi for how it collected user data. It blocked two major video game streaming platforms from combining, hit e-commerce giant Alibaba with a nearly $3 billion antitrust fine and this week, a state-run newspaper called online games “spiritual opium.” But the crackdown hasn’t been targeting all tech companies equally. Marketplace’s Meghan McCarty Carino speaks with Greg Ip, the chief economics commentator for The Wall Street Journal. He writes that the government views the tech industry in two distinct ways: the nice-to-haves and the need-to-haves.

We learned this week that Uber saw strong demand for its food delivery service in recent months, despite restaurants reopening. Late last year, the company bought its competitor Postmates for $2.6 billion dollars. Behind the scenes, Uber has been working to merge the two businesses, transitioning drivers away from the Postmates corporate app for months, with plans to completely shut it down as soon as next week. The consumer app will stick around. Marketplace’s Meghan McCarty Carino speaks with Alex Susskind, director of the Cornell Institute for Food and Beverage Management. He says even though Uber and Postmates are offering essentially the same foods from the same drivers, there’s a reason the brands are separate: consumers.

Back in May, Twitter partially disabled an algorithm that cropped photos posted by users in ways that revealed certain biases. A company audit, and plenty of people on the internet, found the algorithm preferred white faces over Black faces, and women over men. Now, as part of the hacker conference DEF CON, which starts tomorrow, the company is offering a cash bounty to help fix the problem. Marketplace’s Meghan McCarty Carino speaks with Rumman Chowdhury, director of Machine Learning Ethics, Transparency and Accountability at Twitter. Before that, she was founder and CEO of Parity, which helped other companies identify bias in their algorithms. Chowdhury says the cropping algorithm was based on data tracking where real people tended to look in photos.

Correction (Aug. 5, 2021): A previous version of this story misstated how Twitter’s algorithm was biased. The audio has been corrected.

About seven months ago, Apple rolled out some new features that let users see exactly how apps collect data about us and share it with advertisers. The privacy “nutrition” labels run pretty much on the honor system: It’s up to the app makers to provide the information. Now, Google is revealing how its own labels might work for Android. Marketplace’s Meghan McCarty Carino speaks with Ashkan Soltani, a fellow at Georgetown Law’s Center on Privacy and Technology. He says we can get a sense of how effective Google’s labels might be by looking at how Apple’s have worked so far.

They’re called electronic visit verification apps, or EVVs. They log the hours and the movements of home health care workers paid for by Medicaid. States are just starting to roll them out as part of an Obama-era program that promised to make managing the work of home aides more efficient and reduce fraud in the system. Marketplace’s Meghan McCarty Carino speaks with Virginia Eubanks, the author of “Automating Inequality: How High-Tech Tools Profile, Police, and Punish the Poor.” She’s been following Arkansas’ implementation of EVVs and co-wrote a story about it for the Guardian newspaper. Eubanks said the state’s app has been glitchy, which led to missed paychecks for aides.

On Wednesday, hundreds of employees of video game company Activision Blizzard walked out. The protest followed a lawsuit from California regulators accusing the maker of World of Warcraft and Call of Duty of unfair pay and lack of advancement for women and a “frat boy drinking culture” at the company. Management eventually apologized for its initial, dismissive response to the lawsuit and promised to investigate. Sarah Needleman covers video games and technology for The Wall Street Journal. She said men have dominated the video game industry for years, despite a roughly 50-50 split among players.

Yesterday, the show focused on how the growing market for electric vehicles is affecting the supply chain for batteries. Today, how about where to charge all those batteries? Many people have electric cars, and a lot more will by 2025. Global sales will triple by 2025, according to IHS Markit. But it’s not just about the number of cars, it’s also about the number of available chargers. Marketplace’s Meghan McCarty Carino speaks with Jessika Trancik, a professor at MIT who recently co-wrote an article on charger placement for Nature Energy. Trancik says for the EV market to grow, we’re going to need more chargers in the right places, especially at home.

The electric vehicle market, while still small, has grown rapidly this year. Of course, a global shortage of microchips could slow things down. In the long term, there’s also the issue of availability of lithium, a soft, silvery metal that’s the key component in electric car batteries. Marketplace’s Meghan McCarty Carino speaks to Chris Berry, a strategic metals consultant and president of House Mountain Partners. He says demand for lithium is expected to triple in the next five years which is why some automakers, like GM, have taken the unusual step of making deals with lithium mines directly.

When you search for someone notable on the internet, one of the first things that often pops up is a link to their Wikipedia page. But if you’re looking for a notable woman, that might not be the case. There are about 1.5 million biographies on Wikipedia. Only about 19% of them are about women. And those that do get published are much more likely to be targeted for deletion, compared to biographies of men. That’s according to research by Francesca Tripodi, a professor of sociology at the University of North Carolina at Chapel Hill. Marketplace’s Kimberly Adams speaks to Tripodi about her recent paper, “Ms. Categorized: Gender, notability, and inequality on Wikipedia.”

Let’s talk about gardening technology. Not some fancy gadget for monitoring water or sunlight, but technology that feeds the dirt itself. Washington, D.C.’s wastewater-treatment plant is one of the largest high-tech plants in the world. It uses a process akin to pressure cooking to turn what’s flushed down the toilet into fertilizer fit for planters at home. Marketplace’s Kimberly Adams takes a tour to learn more about thermal hydrolysis tech.