Sacha Pfeiffer

NPR's Sacha Pfeiffer speaks to Dr. Manfred Green of the University of Haifa about what Israel has learned about vaccinations and the new Omicron surge.

Blood supplies are low at hospitals across the country, and the American Red Cross hopes people will continue to donate blood in order to bolster supplies.

NPR's Sacha Pfeiffer talks with Karen Greenberg, director of the Center on National Security at Fordham University School, about the future of the U.S. military court and prison at Guantanamo Bay.

NPR's Sacha Pfeiffer speaks to Duke University Hospital emergency physician Dr. Daniel Buckland about the state of his hospital as the Omicron variant surges.

NPR's Sacha Pfeiffer speaks to Texas musician Jana Horn about her debut folk album, "Optimism."

NPR's Sacha Pfeiffer talks with Mackenzie Davis, who stars in the HBO Max series "Station Eleven." It's based on the novel about survivors of a flu pandemic that kills most of the world's population.

NPR's Sacha Pfeiffer talks with Jabari Asim about his new novel "Yonder." It's about the relationships and experiences of a group of enslaved people in the antebellum South.

NPR's Sacha Pfeiffer talks with U.S. Fire Administrator Lori Moore-Merrell about this month's fatal fires in New York and Philadelphia, and about safety issues in apartment buildings nationwide.

We take a look at President Biden's tough week, after the Supreme Court dealt a blow to his mask-or-test mandate for large employers and his attempt to reform the the filibuster died in the Senate.

NPR's Sacha Pfeiffer talks to correspondent, Eleanor Beardsley, who has been traveling around Ukraine.

NPR's Sacha Pfeiffer speaks with Alex Mumford, who moved to the Isle of Rum in the Scottish Hebrides as a part of the island chain's efforts to boost its population.

NPR's Sacha Pfeiffer talks with Lauren Whitehurst, a cognitive neuroscientist specializing in sleep, about who in our society doesn't get enough sleep and why that's a problem.

NPR's Sacha Pfeiffer speaks with Helen Wheeler, a wildlife ecologist from Anglia Ruskin University in the U.K., on the impacts beavers are having as they move into the Arctic tundra.

An underwater volcano erupted Saturday near Tonga, sending tsunamis across the pacific basin.

The U.S. military prison at Guantanamo Bay, Cuba, admitted its first inmates 20 years ago Tuesday. The debate over what to do with the last prisoners, most of whom have never been charged, continues.

Chronic traumatic encephalopathy is infamous in the NFL. But there's a quiet population of everyday people who never played pro sports yet fear CTE. Here are some of their stories.

Chronic traumatic encephalopathy (CTE) goes far beyond the NFL. Everyday men and women worry they have the fatal disease, and they've turned to questionable brain products for help.

NPR's Sacha Pfeiffer speaks with a man who is concerned about CTE, and with neuroscientist Bob Stern, who explains why more cases of CTE may emerge decades after plastic helmets became commonplace.

A man who helped to expose the Catholic Church's cover-up of clergy sex abuse has died. Phil Saviano was a childhood survivor of abuse and decades later went public with his story.

The brain disease CTE can only be diagnosed through autopsy. But there is a quiet population of everyday people afraid they have it — and they're turning to dubious treatments.