Most websites have code running in the background to help the site run better and, of course, to target advertising. A recent investigation from “The Markup” found many tax-filing sites were sharing users’ financial data with Facebook using a code called Meta Pixel. Marketplace’s Kimberly Adams speaks to Simon Fondrie-Teitler, an infrastructure engineer at The Markup and co-author of this investigation.

Data regulators in Ireland fined Meta earlier this week for failing to safeguard the sensitive information of Facebook users. The tech giant was fined the equivalent of about $275 million for a 2019 data leak, when personal information from more than 500 million Facebook users was scraped off the site and then published in a hacker forum. Marketplace’s Kimberly Adams speaks with Adam Satariano, a tech correspondent for The New York Times based in London, who reported on this story. He says this recent punishment is just one of several fines the Irish government has imposed on Meta, and it’s part of a larger trend.

While Elon Musk has been celebrating a bump in users and app downloads since he took over Twitter, many longer-term users say they’re seriously considering leaving. Some are even holding mock funerals anticipating the site would break down. This week, Twitter users discovered the company is no longer enforcing its COVID-19 misinformation policy. But if Twitter actually fell apart, what would happen to the distinct spaces there, like what’s commonly referred to as “Black Twitter”? Marketplace’s Kimberly Adams speaks with Shamika Klassen, an information science Ph.D. candidate at the University of Colorado, Boulder. She co-authored a research article about Black Twitter last year.

If you’re a regular listener of “Marketplace Tech,” thank you. We’d love to hear from you. You can drop us a line anytime at [email protected]. We’d also appreciate it if you took the time to leave us a rating and review wherever you listen to the show. It really helps people find us, so thanks.

Earlier this month, the SS Sally Ride cargo capsule made its way to the International Space Station. The spacecraft was carrying hundreds of pounds of scientific experiments. One of them involves what’s called a 3D BioFabrication Facility, which can build human tissue and organs in space that scientists can’t make on Earth. Marketplace’s Kimberly Adams speaks with Rich Boling, vice president at Redwire, which manufactures the equipment for these experiments. She asked him about how 3D printing works when you’re printing something alive.

If you’re a regular listener of Marketplace Tech, thank you. We’d love to hear from you. You can drop us a line anytime at [email protected]. We’d also appreciate it if you took the time to leave us a rating and review wherever you listen to the show. It really helps people find us, so thanks.

Some of the country’s biggest advertisers are balking at the new Twitter under Elon Musk. A recent report from Media Matters for America found at least half of Twitter’s  100 biggest advertisers have either announced they will stop running ads on the platform or just seem to be stopping more quietly. But not all businesses can easily walk away. Take sex workers. A recent survey from the website Sex Work CEO shows that Twitter is incredibly important for adult content creators, helping them connect with fans, find new ones and promote their legal businesses. Marketplace’s Kimberly Adams speaks with MelRose Michaels, the founder of Sex Work CEO. Michaels explained how adult content creators are responding to all the recent changes at Twitter.

Cyber Monday has become one of the busiest — and most lucrative — online shopping days of the year. The National Retail Federation estimates that almost 64 million people will be looking for deals today. But for shoppers with disabilities, it can be a lot harder to take advantage of sales and promotions online. A significant number of the biggest retail websites are not compliant with the Americans with Disabilities Act or Web Content Accessibility Guidelines, which lay out best practices to help make sites easier to navigate by people who are, for example, blind or hearing-impaired. Marketplace’s Kimberly Adams spoke with Josh Basile, community relations manager at tech accessibility company accessiBe, as well as a quadriplegic who uses assistive devices to help him navigate the internet, about how accessibility issues impact him when he shops online.

Actor and producer LeVar Burton is famous for many things. His iconic roles on “Star Trek” and the miniseries “Roots,” for instance. But many of us got to know him as host of the PBS show “Reading Rainbow.” His run with the show ended in the mid-2000s, but Burton is still promoting literacy for kids. He’s now the “chief reading officer” at ed-tech company Byju’s Osmo. Together, they’re launching a reading program for kids ages 5 to 7 that uses an iPad and the Osmo app’s artificial intelligence and speech recognition to help kids grasp the fundamentals of reading. That program is set to launch next month. Marketplace’s Kimberly Adams spoke with Burton earlier this year about the unique reading challenges facing kids today. The following is an edited transcript of their conversation.

Earlier this month, the highly anticipated launch of the Orion spacecraft finally happened at NASA’s Kennedy Space Center in Florida. The lift-off of that unmanned rocket was the first of a series in the agency’s Artemis missions, which aim to eventually establish a long-term human presence on the moon’s surface begin building a lunar economy including extracting precious metals and minerals to send back to Earth. But before sending humans, the agency has to test complex rockets, heat shields and life-support systems. And speed is of the essence. The U.S. and China are in a new space race to get humans to the moon. On this Thanksgiving holiday, we’re revisiting a conversation with Peter Garretson, a Senior Fellow in Defense Studies at the American Foreign Policy Council. He spoke with Marketplace’s Kimberly Adams about how the stakes are different this time around.

Artificial intelligence is commonly used in automated recruitment programs. It helps narrow down large pools of applicants using algorithms to match job seekers to open positions. But there are growing concerns that this technology is disproportionately excluding certain groups, like women, people of color or those who don’t have college degrees, even when they’re perfectly qualified.

Every minute, people upload more than 500 hours of video to YouTube — cat videos, music videos, even videos of people recording their audio podcasts. And some of those clips include content the people uploading them don’t own, like clips of music from popular songs. YouTube, and its owner, Google, have an automated technology called Content ID that regularly scans for copyrighted material — including music — and flags it for copyright holders. Marketplace’s Kimberly Adams spoke about this with Marketplace’s Peter Balonon-Rosen, who explained why the system has some musicians frustrated.