Asma Khalid

NPR's Brian Mann with the latest from near the front lines in eastern Ukraine. Thanks so much for your reporting.

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.

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.

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.

Good morning, John. Good morning. So tell us about this particular kind of visa.

Good morning, John. Good morning. So tell us about this particular kind of visa.

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 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 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 what does this lack of clarity mean for the scientists that you've been speaking with?

So what does this lack of clarity mean for the scientists that you've been speaking with?

So what does this lack of clarity mean for the scientists that you've been speaking with?

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?

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?

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?

And PR science correspondent John Hamilton, thanks for your reporting.

And PR science correspondent John Hamilton, thanks for your reporting.

And PR science correspondent John Hamilton, thanks for your reporting.

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.