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Ukraine's Drone Use, H-1B Visa Uncertainty, New Species In 2024

2024/12/24
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Jonathan Lambert
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Brian Mann: 乌克兰军队越来越依赖无人机打击俄罗斯军队,无人机在战场上发挥着重要作用,有效打击了俄罗斯士兵,但无法阻止俄罗斯的全面推进,乌克兰军队仍在缓慢撤退。尽管如此,关键城市波克罗夫斯克在激烈的战斗八个月后仍未沦陷,这在很大程度上要归功于无人机部队。无人机技术在战争中被双方使用,但乌克兰似乎在运用这项技术方面更具创造性和有效性。 John Hamilton: 美国科学研究严重依赖持有临时签证的外国科学家,其中超过50万人持有临时签证。H-1B签证是其中最常见的签证类型,它允许大学和科技公司雇佣来自世界各地的顶尖人才。然而,特朗普政府上台可能再次对H-1B签证进行审查,这令科学家们感到担忧。许多科学家担心他们可能会失去在美国工作的机会,并被迫前往其他国家。 Jonathan Lambert: 科学家们每年都会发现许多新物种,这表明生物多样性仍然存在。然而,气候变化和森林砍伐等因素也对这些物种构成威胁。报告中提到了三种新发现的物种:云豹、马达加斯加树蛙和一种具有超长花蜜管的兰花。这些发现突显了生物多样性的丰富性和脆弱性,也提醒人们需要保护这些物种及其栖息地。

Deep Dive

Key Insights

Why is Ukraine increasingly relying on unmanned attack drones in its fight against Russia?

Ukraine faces a manpower shortage and uses drones to disrupt Russian assaults and reduce casualties. These drones are effective in night operations, using infrared cameras to target enemy soldiers.

How are unmanned attack drones used in the Ukrainian military?

Drones are deployed at night, equipped with infrared cameras to detect and target Russian soldiers. They are coordinated from secret command posts and are used to disrupt enemy assaults.

What is the impact of drone use on the ongoing conflict in Ukraine?

Drones have been effective in killing and wounding large numbers of Russian soldiers, contributing to Ukraine's ability to slow Russia's advance despite ongoing retreats.

What challenges do foreign-born scientists face with H-1B visas under a potential Trump administration?

Scientists are concerned about renewed scrutiny and potential restrictions on H-1B visas, which could limit their ability to work in the U.S. and push them to seek opportunities in other countries like Canada.

How does the H-1B visa program impact U.S. scientific research and tech companies?

The H-1B visa allows universities and tech companies to hire top international talent, contributing significantly to scientific research and innovation in the U.S. Its potential restriction could lead to a loss of expertise and economic impact.

What are some notable new species discovered in 2024?

Among the new species are clouded tiger cats, a new type of frog in Madagascar, and an orchid with a remarkably long nectar spur, highlighting the ongoing biodiversity discoveries despite environmental threats.

How does the discovery of new species contrast with the current state of global biodiversity?

While new species are being discovered, biodiversity is threatened by climate change and deforestation, raising concerns about the survival of these newly identified species.

Shownotes Transcript

Translations:
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Good morning, and from all of us here at Up First, we wanted to wish you a very Merry Christmas Eve if you're celebrating. I'm Asma Khalid, and we are so grateful that you're spending some of your holiday morning with us today. Grateful that you're with us every day. We know you have a lot going on in your life. That's why we work hard to make Up First as smart and brief as possible. There's always more information available from NPR for you, but this is where you can start your morning and trust that you'll be prepared for the day ahead.

You can help us keep doing this work by signing up for NPR Plus today. If you're already a Plus supporter, thank you so much. If not, sign up and unlock perks for more than 25 NPR podcasts today, including sponsor-free listening to Up First. Join now at plus.npr.org. That's plus.npr.org. All right, now on to the news.

Ukraine's military is increasingly relying on unmanned attack drones in its fight against Russia. We try to take out as many as we can before they reach our positions, but sometimes there are just too many and it's impossible to hold. I'm Asma Khalid and this is Up First from NPR News.

Scientific research in the U.S. is driven by foreign workers on temporary visas. I really like Stanford, but I would have to see what kinds of changes happen under Trump. Why scientists are worried about this visa category they rely on. And we often hear about endangered species. But what about the thousands of new species identified each year? When I saw a

I was kind of mesmerized by it. Stay with us. We'll give you all the news you need to start your day. This message comes from Capital One. Banking with Capital One helps you keep more money in your wallet with no fees or minimums on checking accounts. What's in your wallet? Terms apply. See CapitalOne.com slash bank for details. Capital One N.A. Member FDIC.

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The Ukrainian army has been struggling to slow Russia's advance in the east. Facing a manpower shortage, Ukraine is relying more and more on unmanned flying attack drones. NPR's Brian Mann was able to visit a secret drone command post near the front lines in Pokrovsk and joins us now from Kyiv. Good morning, Brian. Good morning, Asma. Can you describe where you went to see these attack drones?

Well, it's interesting. Ukraine's military actually made it hard to know exactly where I was. The location of these command posts, it's a carefully guarded secret. I was guided in an armored car to a village outside Bukrovsk. It's a key coal mining town and transportation hub. It's been under siege by Russia since spring. Soldiers brought me in darkness to a workshop where I saw technicians building these drones. They're black, five-bladed devices about the size of a small lawnmower. They were

Then they took me to a command post where teams coordinate these drone attacks across a huge battlefield. And once you were there, what did you see?

Well, these attacks are actually terrifying to watch. The drones operate at night. Their cameras see in infrared. So on a big flat screen TV, Asma, I watched as one drone spotted a Russian soldier. He was moving forward, trying to get close to Ukrainian positions. His body heat was visible against the snowy ground. And I had my recorder on while this was happening. Okay.

Okay, the camera's zooming in on bright heat signatures, and a bomb is dropping. You can see it falling, and another flare of light, a large explosion now.

And the Ukrainian's Osmos said that Russian soldier was killed. I was standing next to a Ukrainian soldier who goes by the call sign PIP, who coordinates attacks, that these drone pilots were working that night. He said their job is to disrupt as many Russian assaults as they can. We're doing this every day, nonstop, 24 hours. Are they also doing this? With us, yes.

So both ways. Yes. And that's a brutal reality of this war. These drones, they're killing a lot of Russians and Ukrainians. And it sounds like from your reporting, Brian, that these remote controlled weapons are being used by both sides, by both Russia and Ukraine. So are they actually making a difference for Ukraine in its fight?

A lot of military analysts think Ukraine has been more creative than Russia, more effective using this kind of technology. A group called the Institute for the Study of War did an analysis, found Russia losing huge numbers of soldiers killed and wounded as they grind forward in one two-week period. This month, Russia lost 3,000 troops in the Pokrovsk area. Russian President Vladimir Putin has downplayed those casualties and says his army is winning. And

And I did speak to one of these Ukrainian soldiers in the drone unit, a technician named Yuri. We agreed to only use his first name for security reasons. He told me drones alone won't stop Russia. We try to take out as many as we can before they reach our positions, but...

Sometimes there are just too many and it's impossible to hold. So Ukraine keeps slowly retreating. But after roughly eight months of this intense fighting, this key city, Pokrovsk, still hasn't fallen. And that's in large part because of these drone units. NPR's Brian Mann with the latest from near the front lines in eastern Ukraine. Thanks so much for your reporting. Thanks, Asma.

Scientific research in the U.S. relies heavily on foreign-born scientists, including more than half a million working under temporary visas.

Those visas became more difficult to get during Donald Trump's first term as president, and they are likely to face new scrutiny again as Trump returns to the White House. NPR science correspondent John Hamilton has been reporting on that and is with me now. Good morning, John. Good morning. So tell us about this particular kind of visa. The most common visa for working scientists is called the H-1B.

It was created in 1990. The idea was to have a limited number of highly skilled foreign nationals working in the U.S. for up to six years.

You have to have at least a bachelor's degree to qualify. But many of the scientists working under an H-1B actually have a Ph.D. And in the science world, this visa is a big deal. It's sometimes called the secret weapon because it allows universities and tech companies to hire top talent from around the world. So I do recall during Trump's first term in office, these H-1B visas did come under attack. Can you remind us of what exactly transpired?

So three months into his first term, President Trump spoke at Snap-on Tools in Kenosha, Wisconsin. He was standing in front of this flag made of red, white, and blue tools, and he unveiled a plan to restrict work visas, specifically the H-1B. Widespread abuse in our immigration system is allowing American workers of all backgrounds to be replaced by workers brought in from other countries to fill the same job

For sometimes less pay, this will stop. At the time, Trump issued several executive orders designed to make these visas harder to get. Then in 2020, he temporarily suspended the new H-1B visas. Now, the Biden administration came in, reversed a lot of those changes. But with Trump returning to office now, there could be another shift.

Trump has named Stephen Miller as his deputy chief of staff, and Miller was the main architect of the H-1B restrictions under the first Trump administrations. On the other hand, Elon Musk has been a supporter of the visas, and he's pretty influential. So what does this lack of clarity mean for the scientists that you've been speaking with? It means a lot of anxiety. High-level science is this increasingly international sport.

So, for example, I talked to Lely Mordazavi. She's a brain scientist who was born in Iran and is now getting her doctorate at Stanford University. She almost didn't get to come because of what's often called the Trump administration's Muslim ban, which kept out Iranian citizens. But Mordazavi was able to get a Canadian passport to attend Stanford. I really like Stanford. People here are great. The resources are amazing. But I would have to

Right. I mean, she's worried about getting a visa to work in the U.S. So she's looking at jobs in other countries like Canada. She's also looked at Oxford and University College London.

John, it seems like U.S. universities invest a lot in these folks and universities, large research organizations, the tech sector depend quite a bit on international talent. So what are they saying about the fear that people that they are investing in, that they are training, may take their expertise elsewhere? They're clearly worried. You have some tech firms like Box, you know, the cloud computing firm that are making the case that H-1B visas are good for the U.S. economy.

Universities are saying very little. I contacted at least half a dozen major research institutions over the past few weeks, and they pretty much declined to comment. I also reached out to the Trump transition team, but I haven't heard back yet. And PR science correspondent John Hamilton, thanks for your reporting. Always happy to be here. ♪

Each year, scientists add thousands of new species to the scientific record. Here to talk through a few of them is NPR's evolutionary biologist turned science correspondent, Jonathan Lambert. Good morning, John. Good morning, Asma. So tell me what struck you as the most interesting species added to the roster. I want to start with clouded.

tiger cats, mostly because they're really cute. But they're also this great reminder that there are these like big charismatic species out there that are still undiscovered.

What do they look like? So they're about the size of a house cat, but they look kind of like little leopards. And scientists thought that there were only two species of them in South America. But in 2009, this biologist named Teddo de Oliveira, who's like the expert on tiger cats, got an email that piqued his interest. When I saw, I was kind of mesmerized by it. Huh. Oh.

So how did he know that it was any different than the other tiger cats out there? He's looked at a lot of tiger cats, and these ones seem to just be a little different because they had slightly different spots, and their fur seemed thicker, and then on the video, they looked like they were moving different. And so he had a hunch, but it took him and 40 other scientists over a decade to actually prove that this was, in fact, a new species. And so it just shows...

It can take a really long time to go from an observation that you've got a hunch about to describing a new species and putting it on the books. John, this is all fascinating to me because I feel like I always hear about species that are endangered. And it

And I don't really pay attention to new species being discovered, but, you know, it's a bit of a bright spot. So what else do you have for us? Yeah, I spoke with another biologist named Hugh Gabriel, who was an undergrad when he got on the path to naming a new species of frog in Madagascar. When I was doing a independent research project in the rainforest area,

I noticed these frogs that looked really different from anything I was seeing in the guidebook. He told me that these frogs were hidden within the leaves of these trees and they just looked a bit smaller and their color was kind of off, sort of a coppery bronze color.

And so he wrote to the author of that guidebook who agreed that these frogs did actually seem a little different and they collaborated. That's cool. So he discovered a new species while in undergrad? Yeah, he actually discovered three new species or described them. And all of these frogs spend their entire lives in these trees. They lay their eggs, they hatch, they eat little spiders, all within the tiny pools of water that collect between the leaves. And this kind of lifestyle is unusual for frogs and birds.

Pretty cool. Where are we headed next? So I want to stay in Madagascar because it's such a richly biodiverse place. And I want to add a plant to the list, specifically an orchid.

Orchids are these plants that have these nectar spurs, which are like little tubes that feed nectar to pollinators. And this new species has one that's like a foot long. And that's actually the longest nectar spur relative to the flower size of any known plant. All right. So this is all really interesting, John. But these species are being found at a moment when a lot of biodiversity around the world is in danger. It's in trouble. So how do you square that?

Yeah, there's climate change, there's deforestation. We risk losing these species just as soon as scientists are finding them. All right, well, thanks for walking us through this all, John. Thank you, Asma. That's NPR science correspondent Jonathan Lambert.

And that's Up First for Tuesday, December 24th. I'm Asma Khalid. For your next listen, why not consider Consider This from NPR. As the U.S. economy outperforms most other countries, many Americans remain frustrated by the high cost of living. And so, let's take a look at some of the most important things

And that's fueled a lot of unhappiness and a political comeback for President-elect Donald Trump. Will his policies bring costs down or rekindle inflation? Listen to consider this from NPR. Today's episode of Up First was edited by Miguel Macias, Giselle Grayson, Lisa Thompson and Alice Wolfley.

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