A new working paper from the National Bureau of Economic Research spotlights how immigrants may be shaping the health and mortality rates of older Americans. Researchers found that a roughly 25% increase in immigration to the United States could prevent nearly 5,000 deaths among seniors 65 and over. Today, we'll unpack the findings. But first, an ominous tale of AI destruction captured the imagination of the public — and stock market traders.

Wall Street is looking to recover after yesterday's big stock market drop. Part of it was due to tariff uncertainty, but part of it was also due to a thinkpiece that painted a nightmare scenario in which AI displaced white-collar jobs throughout the economy — in areas far beyond the software, technology, and financial firms that have recently faced a selloff. Also: Depop's new owner and a look at who gets left behind by new Trump Accounts.

From the BBC World Service: Exactly four years ago, Russia launched its full-scale invasion of Ukraine. Hundreds of thousands of troops have been killed, and the financial cost has also been massive for both countries. This morning, we'll learn more. Then, the U.S. has imposed a new flat-rate tariff of 10% on global imports. And, China has imposed restrictions on dual-use exports to 20 major Japanese companies, accusing them of boosting a military build-up in Japan.

Following Friday’s Supreme Court decision striking down a number of President Trump’s tariffs, the administration is moving to impose a global 15% tariff, with some exceptions for countries like Canada and Mexico. The tariffs, which are being levied temporarily under a statutory authority known as Section 122, will bring the average effective tariff rate to 13.7%, according to the Yale Budget Lab. Also on the program: Spain’s new plan to bolster its workforce by granting legal status to migrants living in the country illegally.

On Friday, the Supreme Court struck down President Trump’s sweeping “retaliatory” tariffs, ruling that he doesn’t have the authority to impose them under the International Emergency Economic Powers Act. Many of the administration’s tariffs, however, remain intact, and President Trump has announced a new 15% global tariff following the decision. We discuss what that means companies, consumers, and the U.S.’s global trading partners. Plus, new analysis from the Cato Institute finds that the presence of immigrants helps to ease the federal budget deficit.

From the BBC World Service: Governments around the world are scrambling to react to President Trump’s decision to impose a sweeping 15% tariff on all imports to the United States. It follows Friday’s Supreme Court judgment that ruled the President had exceeded his authority when he imposed tariffs using a law reserved for national emergencies. And we’ll visit Spain, where the government recently announced plans to legalize around half a million undocumented migrants in a move designed to boost the country’s workforce in economic sectors that have struggled to recruit. Spain’s economy has been outstripping its European Union partners and the government wants to keep momentum going.

“Building Tomorrow” is a special collaboration between Marketplace and This Old House Radio Hour that asks a simple but urgent question: How do we build homes that can last the next hundred years? From wildfire rebuilds to factory-built housing, this hour explores how new materials, new methods, and new ideas about community are reshaping the future of housing in America. Hosted by Jenn Largesse and Marketplace’s David Brancaccio, the episode blends reporting, lived experience, and hard science to show what’s possible right now. In this episode, you’ll learn about: A massive prefab factory where homes are built like cars on an assembly line.A disaster research campus where engineers crash-test houses against hurricanes, hail, and wildfire. A cutting-edge micro factory using software and small factories to build homes faster, locally, and at scale.Touring a pioneering cross-laminated timber home built as a living case study in low-carbon construction.How a 100-year-old house is transformed into a net-zero, future-ready home.A tiny-house community redefining retirement, aging, and what “home” really means.Note: In the segment featuring Aloe Blacc's prefabricated home, the exterior is made of cement fiber, but the interior is not. The home's fire resilience comes from a combination of steel framing, fiber cement siding, and triple-pane windows.

The Supreme Court just ruled that the cornerstone of the president’s tariff policy is illegal. It says Donald Trump can’t impose tariffs under the International Emergency Economic Powers Act. U.S. consumers and businesses have been shouldering nearly 90% of the cost of all import taxes, and some businesses are vowing to go to court to get a refund. Also on the show: weaker-than-expected GDP growth, DEI's rebrand, and potential federal regulation for driverless cars.

Mainstream economics acknowledges that some joblessness helps to keep prices down. It’s one of the reasons most economists say unemployment at zero isn't actually ideal. This morning, we're joined by the University of Tulsa's Clara Mattei, who argues in a new book that "unemployment is not a problem for our system, but it's actually a solution for it." But first, both Democrats and Republicans grapple with the issue of affordability.

From the BBC World Service: In her first major speech since being reelected as Japan's prime minister, Sanae Takaichi promised to make Japan "stronger and more prosperous." Promises included some changes to the country’s fiscal policy approach, which would include big government spending, strategic industrial investment, and subsidies. Meanwhile, lurking in the background is Japan's heavy debt and sluggish growth. Also, gold prices are on the rise, and traditional French brasseries and bistros are facing an existential crisis.