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In a few hours, longtime Gambian leader Yahya Jammeh's presidential term will expire. But he is clinging to power as troops from regional powers reportedly amass at the border.

International and regional powers are demanding that Jammeh step down and make way for his rival, businessman Adama Barrow, who won last month' s presidential election.

The African Union has stated that it will stop recognizing Jammeh as president after his term expires at midnight local time. (Gambia is five hours ahead of the U.S. East Coast.)

President-elect Donald Trump's choice to head the Department of Health and Human Services defended stock transactions he made as a member of Congress as "above board," while vowing he would not pull the rug from under any American with health care as result of replacing the Affordable Care Act.

Rep. Tom Price, a Republican from Georgia, faced the first of two hearings he'll have as the nominee for HHS secretary. Wednesday's was before the Senate Committee on Health, Education, Labor and Pensions. It will not vote on Price's nomination; that's up to the Senate Finance Committee.

President Obama's final press conference was one of both reflection and subtle rebuke toward incoming President-elect Donald Trump, defending voting rights and a free press, all while reassuring the American people that "at my core, I think we're going to be OK."

The first results from a major project to measure the reliability of cancer research have highlighted a big problem: Labs trying to repeat published experiments often can't.

That's not to say that the original studies are wrong. But the results of a review published Thursday, in the open-access journal eLife, are a sobering reminder that science often fails at one of its most basic requirements — an experiment in one lab ought to be reproducible in another one.

Thomas Graham, managing director of the Kissinger Associates consulting firm, doesn't like to discuss speculation that he may become President-elect Donald Trump's next ambassador to Moscow.

But the former diplomat and adviser on Russia in the George W. Bush administration does like to talk about something else: how to salvage U.S.-Russian relations following accusations that Russian President Vladimir Putin interfered in the November presidential election.

Chances are you or somebody you know has recently become the owner of an Instant Pot, the multifunction electric pressure cooker that can produce fork-tender pot roasts in less than an hour, as well as brown meat, cook beans without soaking, and even do the job of a rice cooker or crockpot.

My whole life, I've dreamed of having a home theater. But those are expensive, so instead I did it on the cheap. I got a projector off Craigslist, went to the hardware store and bought some wood to build a frame, then stretched a white canvas over it and stapled it tight.

I'm really proud of the final product — it's not perfect, but it's pretty good for an English teacher. Now my family and I all sit and watch it, this screen. Between movies, TV shows and games, we spent the whole winter break looking at my creation.

Copyright 2017 Fresh Air. To see more, visit Fresh Air.

TERRY GROSS, HOST:

Cold and flu season means plenty of parents are trying to figure out whether their kid is too sick to go to child care or school.

President-elect Donald Trump's pick to run the Department of Health and Human Services is taking heat for his controversial stock holdings in companies affected by laws he has worked on and voted for. But federal records show several senators who will take part in confirmation hearings for Rep. Tom Price, a Georgia Republican, have substantial health-related holdings as well.

Last month, as China encountered some of its worst pollution yet, artists in Chengdu did something bold: They put smog-filtering cotton masks over the faces of statues representing ordinary urbanites that dot a centrally located shopping street.

When I was a kid, Mom used to say, "You know you've become an infidel when you forget the Fatihah." The Fatihah is the preamble to the Quran, a prayer Muslims repeat five times a day.

Mom used to warn me to be grateful for the practice. That on the Day of Judgment, Allah would call upon me to recite the Fatihah and I would realize that I had forgotten the words and know what it means to be a lost soul.

The hunt for a man suspected of killing a pregnant woman and an Orlando police officer has ended more than a month after it began. Markeith Loyd was arrested Tuesday, placed in the very handcuffs once owned by Master Sgt. Debra Clayton, the officer he allegedly killed.

"I believe our entire community is going to breathe a sigh of relief at this point," Orange County Sheriff Jerry Demings said at a news conference Tuesday night. "This maniac, if you will, is off the streets of our community."

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RACHEL MARTIN, HOST:

A long-running lawsuit accusing the Secret Service of discriminating against black agents appears to be coming to an end without a trial.

The Department of Homeland Security, the Secret Service and more than 100 agents have reached a settlement agreement, the department says. A court still needs to approve the settlement.

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