The Global Story - The soft power superpower, with Roman Mars

3 Jul 2026 · 27 min · 10 chapters

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In short

The Global Story episode examines how US “soft power” and global influence were built through standardization—especially a tiny screw thread angle—during and after World War II.

Guests

Roman Mars, host of 99% Invisible (design-focused storytelling) and co-host/interviewee for BBC’s A History of the United States in 100 Objects. Asma Khaled and Tristan Redmond are the BBC hosts.

Guest backgrounds

Mars is known for making everyday design details matter; he connects design/objects to world-changing systems.

Key claims

US manufacturing capacity after WWII made it a “quartermaster” for the world, forcing adoption of US standards. Herbert Hoover pushed standardization earlier by believing systems create prosperity. WWII Anglo-American meetings led the UK to adopt US screw standards (60-degree vs 55-degree).

Notable examples

60-degree screw thread; standardized paving stones/glassware; stop-sign design (yellow octagon to red, and “stopper” entering French).

Written by AI. May contain mistakes. Listen to the episode to check what was said.

Chapters

Tap a time to open that second in VO

Exploring America's Soft Power

0:53 to 3:38

Discussion on America's soft power and its historical significance.

“This soft power, this influence was an incredible invention.”

Diverse Perspectives on American Identity

3:38 to 6:51

A personal reflection on the meaning of being American amid polarization.

“And today, with the help of the podcaster Roman Mars, we tell the story of the United States as an innovator and how being inventive isn't just about creating things.”

Introduction to Roman Mars and His Insights

6:51 to 8:06

Introduction of Roman Mars and his approach to storytelling about design.

“Please keep your questions and stories coming on our email, which is theglobalstory at bbc.com.”

The Importance of Standardization in Manufacturing

8:06 to 14:01

Discussion on how standardizing products like screws shaped American influence globally.

“because sometimes what makes you powerful might be absolutely tiny.”

The Importance of Standardization

14:01 to 15:40

Learn how standardization in commerce and measurement is crucial for national efficiency.

“Well, what ends up happening is you have to sort of custom do everything at a certain point.”

World War II and American Standards

15:40 to 18:50

Discover how World War II solidified American standards in global commerce.

“Our remit on this show is to talk about stories where the world and America meet.”

The Shift in British-American Relations

18:50 to 24:16

Examine how the British Empire adapted to American standards during WWII.

“And the insidious thing about a screw is that you cannot look at it and say that's 55 degrees versus this is 60 degrees.”

Soft Power as American Imperialism

24:16 to 26:54

Explore how American soft power creates global influence and cultural dominance.

“I imagine it's annoying, at the least, and infuriating.”

The Cost of Globalism

26:54 to 28:01

Analyze the ramifications of America's global reach and its impact on communities.

“It was a new kind of imperialism that saved lives and maybe made some people's lives a whole lot better.”

The Impact of American Ideals on Global Culture

28:01 to 30:02

Explore how American principles have shaped global perspectives and music.

“Our machines across the world should talk to each other.”
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Transcript

Automatic transcript. May contain errors.

0:00This BBC podcast is supported by ads outside the UK.

0:30Whole Foods Market. Make your summer sizzle. How did the United States build the largest soft power empire in the world with the help of some tiny metal objects? I'm Tristan Redmond, one of the hosts of the Global Story podcast from the BBC. To mark 250 years of the United States, we speak to Roman Mars of 99 % invisible. This soft power, this influence was an incredible invention. For more, listen to The Global Story on bbc.com or wherever you get your podcasts.

1:26world into a casino. Good Bad Billionaire. Listen wherever you get your BBC podcasts.

1:35Hi, In Our Time listeners. Misha Glennie here. I wanted to share a great episode from The Global Story, the BBC's daily international news podcast. This week, they're publishing a special collection around the 250th anniversary of the United States, exploring America's relationship with the world. In this episode, Asma and Tristan speak with Roman Mars from 99 % Invisible and the new host of The History of the United States in 100 Objects to talk about soft power, how America's drive to standardise something as small as the screw meant the US now decides how the world is built. If you want to listen to more episodes from this landmark series, find it on The Global Story.

2:20And if you're in the UK, listen on BBC Sounds. If you're outside the UK, find it on bbc.com or wherever you get your podcasts. The United States is about to mark 250 years since its founding. Most Americans know that their country has profoundly shaped the world that we all live in. They liberated most of Europe in World War II. They invented things like the electric pencil sharpener, the atom bomb, the internet, the personal computer, breakfast cereal. I admit, I didn't know we actually invented all those things. But like many big birthdays, this is a moment of celebration over here in Washington and across the country.

2:59It is also, though, a moment of angst and introspection. A moment to reflect on America as an idea, as a country, as a people. So we're stepping back from the news to dedicate a whole week of episodes to the surprising tales of American influence on the world stage and in ordinary people's lives across the globe. since we are a show about where the world and America meet. We have been looking into some gripping stories about how, over the years, the United States has shaped the world. People think in stories, and we have this ability to export our story. And a lot of people have bought it. And today, with the help of the podcaster Roman Mars, we tell the story of the United States as an innovator and how being inventive isn't just about creating things.

3:48From the BBC, I'm Asma Khaled in Washington, D.C. And I'm Tristan Redman in London. And today on The Global Story, how America used soft power to build a hidden empire.

4:06Asma, as we celebrate the 250th birthday of the United States, I want to start with a big question for you. What does the United States mean to Asma Khaled? Oh, that is a big question. You know, I know that this is a moment in which many people in the United States are feeling really polarized. But I will also say, as you all who work with me have probably gleaned, I am somebody who believes deeply in the promise of the United States. And in major part, that's because my family's story here in the United States is so fundamentally linked to opportunities and inventions in the United States. My uncle had polio as a small child living in Pakistan, and they moved to the United States in 1962 for polio treatment.

4:54The best polio treatments in the world were here. The polio vaccine was invented in the United States. And yes, I'm clear eyed that there are many debates now happening with an administration that has cut support for funding, has raised questions about trust in vaccines and science. I know that those are the debates we are having in this moment. But you're also speaking to somebody whose life has been fundamentally reshaped because of the opportunities that the United States could provide her family. I hear you, Asma. And as you know, but maybe some of our listeners don't, I am actually American in spite of my accent, which makes me sound very British.

5:33I was born in Detroit and I've lived a lot of my life outside of the US. But I'm enormously proud of my American nationality and my American identity. But it's also difficult to be an American in the world. People have questions about the United States in all sorts of ways. And when you're an American in the world, you feel like some of those questions are being aimed at you. So it's complicated. It's a complicated thing. I think that that's one of the things, though, that I also love about the United States. This idea of America, it's an experiment. And there is a sense, not always, but for many people, of optimism and striving and trying to make this American project better.

6:14And I love that optimism. Well, Asma, this podcast is not all about us. We've got some fascinating stories lined up for our listeners this week. Asma, you've been looking at the American dream and whether it's still attainable. That's right. And we're also going to be doing an episode on how American power has been used in somewhat surprising and shadowy ways. We're also looking into how the United States helped create a rival superpower. And you, our listeners, you've been sending us your questions and stories about what's next for America and its role in the world. and we'll be putting them to some of the BBC's top foreign correspondents, like our international editor, Jeremy Bowen.

6:53Please keep your questions and stories coming on our email, which is theglobalstory at bbc.com. But today, Asma, we are going to be looking at the question of US soft power. What do you think about when you think about American soft power, Asma? I guess it's all the ways the United States has sought to project its values around the globe, whether that's through Hollywood or hip hop, whether it's through sports stars who sparked political change or fashion icons, all of that. Well, we didn't want to focus on the big things in American history. Yeah. We want to focus on something small and surprising that tells us about the bigger picture.

7:36And no one does that better than Roman Mars. he's made a career of that on the hit podcast 99 % Invisible, which is a show about design and all the little facets of life that we rarely think about that make the world work. And there's a story I found out about when making this episode that is just one of those stories. It's not glamorous, it's not obvious, but it really did literally shape the world in America's image. because sometimes what makes you powerful might be absolutely tiny. Fantastic. I feel like I need to lean into my mic a little bit more. Otherwise, Roman is going to tell me I'm an amateur.

8:21Oh, it's not that. This is like what I like. Roman joined us in our London studio and he was in town working on his new BBC series, A History of the United States in 100 Objects. All right. Over to you guys.

8:42Roman, we are here today to talk a little bit about U.S. soft power, because that's one of the things that you touch on in the show. These days, we live in something of a world of American empire, empire with a small e, but it looks very different to the British empire capital E. Why do you think that is? I mean, throughout the 20th century, we just figured out something in the United States that we didn't have to put governors and colonies and put down insurrections and armies that we could use our global manufacturing power in particular to control the earth in these ways that were way more effective.

9:28It's not free of coercion. It's not free of power. But it is so effective. What have you learned during the journey you've been on about what American soft power actually looks like in the world? Well, it is really pervasive. and one of the things that we did was we have a kind of manufacturing might that is a consequence of planning but also just the luck of history like World War II destroyed a lot of the manufacturing power of a lot of the world. We were mostly free of having that on our shores and so our factories could keep running and people needed us and we became the sort of quartermaster for the world in terms of providing all the different bits and pieces of, you know, Jeeps and tanks and things like that.

10:18And through that, we ended up enforcing our will of the sort of global standards of things. And one of the stories that we do on A History of the United States and 100 Objects is about the 60-degree angle screw, which is the angle of threading on a screw, which was the U.S. standard that was developed. And it was not the global standard. but we told everyone in the world essentially like if you want our jeeps you have to adopt our standard and therefore it really just changed the the nature of our relationship with the world standardization of screws yeah is not a topic that i thought i was going to be as interested in that's what we we excel in like we i i want to take these mundane objects and make you care about them and think about the world differently because of it yeah okay we'll take us to the beginning then what was the problem with screws that needed solving and what did the united states do so effectively that not only solved it but created uh greater u.s influence in the world so the problem was is that a screw is a very simple device in fact it's one of the simple like machines that have existed for millennia and the threading of the screw where you're trying to fasten two hard things together.

11:35It has to be at a certain angle so that it fits together. But there's a problem that was developing, which was as the world was industrializing, as the United States was industrializing, certain people were noticing that if we just had greater efficiency and more interchangeable parts, that we could excel in our manufacturing. And one of those people was the Secretary of Commerce, Herbert Hoover, who was a standards fanatic. I am perhaps one of the few living Americans who had full opportunity from high places to see intimately the moving tragedy of that world war. Hoover became famous for being a logistics guy who saved a lot of Belgium from starving, actually, during World War I.

12:26I saw it from its beginnings in 1914 all the way down through the long years, which have not yet ended. And I saw it not only in its visible ghastliness, but I lived with the invisible forces that moved in its causes and its consequences. And later he became Secretary of Commerce in the United States. Much later than that, he became president that presided over the Great Depression and became one of history's kind of villains because of it. Well, I mean, what I found really interesting is the revisionist history job you've done for Herbert Hoover here. I mean, you've brought him back from a certain ignominy.

13:07Why was he the man for the job? He just was a man who believed in systems. He was a classic bureaucrat before that term got tainted by someone who didn't get things done. He was like a professional. who believed that if we just had the proper systems in place, the proper thought about how to build a system of manufacturing, that everyone would prosper through it. And so he made it his mission in the 1920s to standardize all kinds of things, paving stones, the type of glassware. If we just made the system more efficient, everyone got richer and it was better. And that was his solution to things.

13:47Can you spell out, though, what the consequences would be of not standardizing things like paving stones and glassware? Like what are the examples of inefficiencies as a result of non-standardization? Well, what ends up happening is you have to sort of custom do everything at a certain point. So like if you have 11 paving stone sizes instead of 65 paving stone sizes, when something breaks or something needs to be replaced, now you can go to a shelf and sort of get them. and having interchangeable parts does so much for you to increase the efficiency of any system. And also it's sort of like, you know, the United States, you know, we think of them as one body, but the different states had lots of different standards of things.

14:35And so just like a bushel of corn was more in one state than another, just in terms of weight. There's like a truck sizes were allowed in one state versus not allowed in another on a road. and you just cannot have a national system of commerce if these different parts don't talk to each other. And so he was really interested in making all that stuff smooth and standard and making kind of one nation out of our system of commerce. You know, this part of this soft power, a requirement is a government that functions and thinks strategically. Whereas up to that point, you could donate enough money and become a general in the civil war.

15:13There was nonsense about how we ran things. And it really was about currying favor and giving jobs to your friends and stuff like that. But through this era of the 1880s on and culminating this period, was it just a sense that a scientific method of doing things was going to make the country more powerful and also make the world a better place. There was just a commitment to that and people were on board for it. Okay, so that's Herbert Hoover's remit. Our remit on this show is to talk about stories where the world and America meet. So rationalization of things and standardization in the United States, when does that start creeping into the rest of the world?

15:57Like I put it to you, that it's not the first time that this was attempted. So in the French Revolution, that's something that they did. They standardized a meter. You can go and see it in a museum in Paris. They standardized temperature, centigrade, for example. I mean, France has had a certain amount of success because, you know, kilometers are used throughout the world. But how is it that the United States had so much more success? What ended up happening, which really enforced our standards on the world, was World War II. On this 10th day of June 1940, the hand that held the dagger has struck it into the back of its neighbor.

16:43President Roosevelt wanted us involved to save the world from the Nazis. We will extend to the opponents of force the material resources of this nation.

16:59And there was this argument that he made that was, if somebody's house is burning, if you could lend a garden hose to them, you would. That's just good neighbors. But, well, you have to make sure your garden hose actually fits their hydrant for it to actually work. Our factories were working. We were turning stuff out, becoming part of the work. And as we were like building and building and building and becoming part of things, you don't just send whole Jeeps. You send parts of Jeeps. And when they break, you have to have other parts that, you know, work with them. And it was becoming clear that very few of our parts were working.

17:38No bullet worked in a gun across the ocean. And so what we had to do is we had to have these series of meetings with the British government that was like, we need to figure this out because the inefficiency of having things fixed in the field was costing people lives. And so there are a series of Anglo-U.S. meetings between 1943 and 1945. And I just sort of went through them all. Daniel Emerwar, who I talked to, describes these series of meetings where the British Empire, very unused to taking orders from anybody, and especially not these upstart Americans. They got used to it eventually. And they begin to go, well, we'll hear you out.

18:22So the first meeting they have, like meeting one, they say, we would be willing to talk about screw thread standardization. And there's a meeting about that. Second meeting, they say, we would agree to consider retooling. And then there's another meeting that's like, okay, we are retooling, but it is just temporary. It is just for the purposes of the war. Don't think that you own us. And then there's another set of meetings where it's just like, okay, we're just capitulating completely. Because the UK had a 55 degree screw angle. And the insidious thing about a screw is that you cannot look at it and say that's 55 degrees versus this is 60 degrees.

19:02You have to like, you only figure that out when you put it in and it doesn't quite work. You have to see the symbolic humiliation. You know, it's one thing for the United States to declare independence. This is the British declaring dependence. This is the British basically saying that in the realm of objects, which turns out to be a really important economically determinative realm, we're going to take orders from you rather than the other way around.

19:45potato salad and savoury flatbreads from the prepared foods department and round it all out with 365 brand condiments, chips and dips at everyday low prices. Whole Foods Market, make your summer sizzle. How did the United States build the largest soft power empire in the world with the help of some tiny metal objects? I'm Tristan Redmond, one of the hosts of the Global Story podcast from the BBC. To mark 250 years of the United States, we speak to Roman Mars of 99 % invisible. This soft power, this influence was an incredible invention. For more, listen to The Global Story on bbc.com or wherever you get your podcasts.

20:41on the planet. Her company, Kalshi, lets you trade on anything from elections to the weather to war. Supporters say it predicts the future. Critics say it could undermine democracy. So is she a visionary? Or has she turned the whole world into a casino? Good bad billionaire. Listen wherever you get your BBC podcasts.

21:01Is the American dream still possible? I'm Asma Khalid, one of the hosts of the Global Story podcast from the BBC. One of the most successful exports the United States has ever sold the world is the American dream, that tantalizing promise of a better, freer, richer life. But is it still attainable? I feel like the American dream is alive, but not well. For more, listen to the Global Story on BBC.com or wherever you get your podcasts.

21:33Once you get the British Empire and all the sort of associated territories in the U.S. on one standard, then everyone else falls in line. From there, it just locks in and we were just in the lead of that. But we were in the lead of that because we had people like Herbert Hoover deciding that stuff for us, you know, like a generation earlier. And then, you know, One of the things about having that type of power and our ascendancy in the 20th century is like, not only do we get to impose our standards on others, we get to decide to not take part of standards that we don't like, which is like the metric system, which for some reason, I don't know why.

22:12But we just, it doesn't feel good in our gut. I don't even know why. The metric system doesn't feel good in American gut. I don't know. We just got used to it. And then and there's a certain part of like, once you start feeling your power of like, people are going to do what you want to do. You start capriciously sort of exercising that power. And that seems to be one of them. So the Second World War is definitely a demonstration of US hard power. Yeah. Is there a case that the US soft power extension around the world that was actually a greater result of the Second World War? again it's not free of coercion and force it's not all benevolent but it is so much better than guns and bombs and i would i argue it's so much more effective as as proof of the fact that the 20th century was very much the american century by the time it was done and it was done in a way that was really new like it's it's empire was was a small e empire of of influence But then the other part of that, of our equation, was that the cultural exports of the United States are second to none.

23:22The rock and roll and the music and stuff like this, we painted ourselves as the heroes of the world. And, you know, just getting English around the world, which is like, I don't know, the UK did a good job getting that going. But people think in stories. And we have this ability to export our story. and a lot of people bought it in ways that benefited the United States in so many ways. Well, not everyone loves it. Nope. You speak with a historian, Daniel Imawar, and he says a thing to you which really made me sit up in my chair. He says, that little thing, the screw thread, is such a potent, hard to notice, but nevertheless deeply consequential symbol of the way in which the United States has remade the world or the world has had to remake itself to accommodate the United States.

24:16I imagine it's annoying, at the least, and infuriating. The world has bent to accommodate English speakers all around the world and English desires, like American desires. And I think everyone's acting rationally in some ways. That's a good choice to make for tourism and for all kinds of reasons. But I imagine having that sort of cultural hegemony rolling over you at all times, it has its miseries. What are the other examples of American design? I mean, you're so immersed in the world of design. What are the other examples that have stood out to you as well as the screw? A lot of stuff gets developed, you know, in terms of design haphazardly.

25:07And when it came to stop signs and most traffic signals and stuff like this, every location had their own traffic signals. The octagonal stop sign was invented by a Detroit police officer. There used to be a yellow square was a stop sign. He didn't feel like that was, like, different enough from other signs. So we clipped the corners off and made an octagonal sign. Everyone recognized that that's a good idea. But it was a yellow octagonal sign. And we put that down as one of these standards that we conformed to, and it was spread across the world. But at a certain point, chemists came up with a nice reflective red color.

25:44And they just thought, you know what? Red would be better. Red would be a better color as a stop sign because it would match traffic lights. And all of a sudden, this became a better standard. And right when everyone in the world had agreed that a yellow octagonal sign would be a stop sign, And a few months later, the U.S. was like, no, never mind, we're going to do red ones. And then the rest of the world just got in line. And it even goes on to change language because, for example, you know, a stop sign in France is exactly the same as a stop sign in the United States. And stopper, S-T-O-P-P-E-R, has entered the French language to mean exactly that.

26:23And I'm sure there were people who fought rearguard actions against Stuppe ever entering the French dictionary, but it is there to stay now. It's an amazing thing, that influence. And this is just unstoppable for us, the United States. I mean, we've arrived at a place now where the focus on soft power is maybe not quite what it was. Yeah, I think so. I mean, this soft power, this influence in these ways was an incredible invention. It was a new kind of imperialism that saved lives and maybe made some people's lives a whole lot better. It's probably the greatest thing America has ever done. Well, I mean, it's not just happening in the United States, though.

27:07It's happening all over the world where leaders are pulling back from engagement with other countries and focusing on inward concerns. Yeah. And this is, you know, it's not being responsive to people and their needs, you know, leads to people's discontent. And that's the big cost of this is like maybe in the effort to become global manufacturers of the world or to have this type of globalism, we left behind a lot of people that react poorly to those notions. I'm going to ask you a kind of journalistic two-part question. Is the world a better place for having 60-degree screws in it? And by extension, is the world a better place for having the United States in it?

Read the full transcript

28:00Huh. I would say 60-degree screws, yes. Our machines across the world should talk to each other. And that makes the world a better place, a more efficient place. Is the world a better place for having the United States in it? Interesting question. I think I have to have enough pride in my country to say yes. There's having a place built around an idea of all men are created equal and having that moment where we knew that we didn't mean all men. but it was because we had that idea to point to like there was a lot of people you know in the sort of in the course of american history who looked at our hypocrisy and said what does the fourth of july mean to an enslaved person like it means nothing and there's some people looked at and said if you really believe this stuff it includes us it includes women it includes people of color.

29:07And having a place built on an idea like that is a powerful thing in the world and worth like paying attention to and preserving. Part of me, like the reason why it is fun for me to tell these stories is because I believe in those ideals. I mean, it's fun to talk about how we deviated from them and how we lived up to them.

29:31And there's fun stuff to talk about our influence on the world. I mean, you know, just like rock and roll alone. Elvis takes black music, turns it into rock and roll. Heartbreak Hotel comes out. Paul McCartney hears Heartbreak Hotel decides he wants to make music. That is a great arrow of things happening in the world. That is a good thing to talk about and preserve and to celebrate. it.

30:02Roman Mars, thank you so much. It's been a pleasure. Thank you. It's been great to be here.

30:13That was Roman Mars. You can find his fantastic series, A History of the United States in 100 Objects on bbc.com or wherever you get your podcasts. Today's episode was produced by Sam Chantarassac and it was edited by James Shield. It was mixed by Travis Evans. Our digital producer is Matt Pintus. Our sound engineers were Johnny Hall and Mike Regard. Our senior news editor is China Collins. And I'm Tristan Redman. And I'm Asma Khalid. Thanks for tuning in. Cheerio.

30:48How did the United States build the largest soft power empire in the world with the help of some tiny metal objects. I'm Tristan Redmond, one of the hosts of the Global Story podcast from the BBC. To mark 250 years of the United States, we speak to Roman Mars of 99 % invisible. This soft power, this influence was an incredible invention. For more, listen to the Global Story on bbc.com or wherever you get your podcasts.

From the publisher

As 4th July approaches, we think you’ll like this episode of The Global Story. All week, The Global Story podcast is exploring the surprising and often hidden ways the US has shaped the modern world.

Roman Mars – the host of 99% Invisible and the new BBC series A History of the United States in 100 Objects – joins as a guest to set out his theory of how the US used design to shape the world in its image.

If you like this episode, find the special collection ‘US and the World at 250’ in The Global Story. If you’re in the UK, listen on BBC Sounds. If you’re outside the UK, listen on BBC.com or wherever you get your podcasts.

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