Control F

On November 1, daylight saving time ends in the United States. That means most of us will “fall back” to standard time for the following four months. But many states want to stop this twice-yearly clock change and instead stay on daylight saving time all year. One question is at the center of this proposed change: What would permanent daylight saving time do to our health? Clare interv...

In this episode we unpack what makes a poll reliable or not and how us regular people should be reading poll data, especially with the midterms coming up. Our guest is Scott Greenstone, politics reporter and host of KUOW's Sound Politics. He gives us some tips and tricks to make sure we're interpreting poll results correctly.  Have a question we should answer on the show? Click here to tell u...

We've all been there: Staring at a screen that prompts you to "leave a tip," and three options to press. How much should you tip for a meal these days? How about a coffee or a hot dog at a baseball game? In this episode, Clare and guest host Brandi Fullwood dig into the data on tipping, and how it impacts workers in restaurants of all shapes and sizes.  Listen to Brandi's podcast Seattle Eats...

When someone says “reading is dead,” is that really true? Reading for fun has taken a big hit, but what’s really going on here? Teo and guest co-host Katie Campbell look at the data on American reading habits to find the answer, and provide tips for aspiring book nerds to get more pages in. Katie Campbell is KUOW’s book club curator. She has read over 51 books this year so...

Getting a college degree is a lot more expensive than it used to be–30% more, after inflation. Everyone has a theory about why that is (Fancy amenities! Lack of state funding! Student loans!) but what does the data say? In this episode, Clare schools Teo on the forces driving college tuition higher, and explains what could bring prices back down to earth.  Have a question we should answ...

Over 2.5 million Americans were forced out of their homes by natural disasters in 2023. As wildfires, hurricanes, and windstorms become routine across the country, homeowners are seeing their insurance premiums skyrocket. This has left many wondering: Is homeowners insurance even worth it anymore? Teo explains to Clare what homeowners insurance actually covers and whether the data says it pays off...

Every road in the United States has a speed limit, but where do these numbers come from? Do they actually make people slow down? And do lower speed limits make roads safer? In this episode, Clare tells Teo about the origins of speed limits, the science and engineering behind them, and how they fit into the bigger picture of staying safe on American roadways.  Have a question we should answer...

Over a million international visitors were expected to come to the U.S. during the 2026 FIFA World Cup. But how did forecasters come up with that number almost a year ago? Teo tells Clare about the surprisingly straightforward math and how businesses use that information to (try to) prepare enough beer when the Scots come to town. We want to answer your questions about how our world works!  C...

Every year, millions of Americans choose to hop on e-bikes because of their affordability, convenience and speed. Motorcycles can take you farther, faster, and have been around longer; so has their dangerous reputation. When you look at the numbers, which is actually more dangerous? Teo explains to Clare what the data says about the unique and shared risks of the two rides. We want to answer your...

Plastic is extremely useful: lightweight, cheap, and flexible enough to make almost anything. That’s why global plastic production has been climbing for decades. All that plastic is making its way into our bodies via tiny particles, and that can’t be good for us…right? Clare tells Teo what we know so far about microplastics in our bodies, and why the science is more complicated...

Taxes on the wealthy are increasingly popular across the political spectrum in the United States. Democrats in particular have pursued taxes on the country’s highest income earners, including a tax on millionaires passed in Washington State earlier this year. But do high earners simply move to avoid paying those taxes? Booming host and KUOW economy reporter Monica Nickelsburg wanted to find...

Many Americans will take on debt this summer for a family trip to a Disney theme park. So why is the happiest place on earth breaking their bank accounts? Teo takes Clare on a fantasy trip to Disneyworld to find out, and see if Clare can have a truly magical experience on a budget.  We want to answer your questions about how our world works!  Click here to submit a question using our onl...

Costco is a beloved brand, famous for its bulk deals and $1.50 hot dog lunch meal. But can shopping there really save you money? Clare tells Teo about her quest to find out, and the surprising ways that some people work the system of wholesale retailers.  We want to answer your questions about how our world works! Click here to submit a question using our online form, or email the team at Con...

President Donald Trump has turbo-powered immigration enforcement efforts in the U.S. As of March 2026, Immigration and Customs Enforcement (ICE) was detaining approximately 60,000 people. The agency is now the best-funded law enforcement organization in the country. The Trump administration claims that expanded immigration enforcement will reduce crime. But does the data support that? Teo tells Cl...

Sports gambling ads are proliferating: In stadiums, on TV broadcasts and on apps across the internet. The multi-billion dollar industry has exploded in the past five years. So what happens when that momentum is translated into gambling on politics, culture, and even war? Clare tells Teo about the meteoric rise of sports gambling, and the way it’s changing norms about betting on real world ev...

Only 11 percent of rental units in the United States allow “big” dogs – but what does that mean? Is a labrador a big dog? How about a pit bull? And why does your landlord care so much, anyway? Inspired by the story of one dog who ran afoul of an HOA rule, Clare tells Teo why so many dogs end up booted from loving homes to shelters and how advocates are trying to stop it.  We...

Someone who has to survive without a regular place to sleep at night is vulnerable to danger, illness, and the more insidious harm of being shunned. One way to quantify the harm caused by homelessness is to understand how many people are experiencing it. How do we do that? We try to count them, and one city is leading the charge on a new approach. Teo tells Clare how it could change our view of ou...

In 1964, then-President Lyndon B. Johnson declared war on poverty. Johnson wanted to lift the nation’s poor into a better life, via programs like food stamps, Medicare and Medicaid. But more than 60 years later, our country is still grappling with how to alleviate the challenges of poverty – including how we measure it. In this episode, Teo explains how the Federal Poverty Line is calc...

The United States spends more on health care than any other country on earth. Most health care products in the U.S. cost at least twice what other countries pay, sometimes up to ten times as much. And everyday Americans are often left footing the bill, grappling with sky-high premiums and medical debt. Clare tells Teo how the forces in our health care system keep costs high, and what you can do ab...

When a storm rolls through your area, odds are you’ll have days of warning and hour-by-hour information about what to expect. That accuracy is thanks to a global data network that turns real-time measurements into forecasts that can stretch weeks. But it wasn’t always this way.  Clare tells Teo how weather went from a guessing game to a precise science, saving lives in the process...

Your credit score is your economic destiny. It determines where you can live, what you can buy, and sometimes even what job you can get. But how do credit bureaus come up with these all-encompassing numbers? Teo tells Clare about the data that credit scores feed on, and how little we really know about how they're calculated. Have a question about how our world works? Want to know more about credit...

Control F is a podcast about data — hard, fuzzy, surprising, and sometimes unreliable data — and all the ways it influences our daily lives. In each episode, we dig deep on a topic and search through research, algorithms, and assumptions to bring you insights on how stuff works. In a world ruled by numbers, Control F reads between the (spreadsheet) lines to find the bigger story. Contr...