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Updated at 2:55 p.m. ET with additional reporting

The wonkiest soap opera in Washington served up yet more of its trademark plot twists on Tuesday as the House Intelligence Committee's investigation into Russia detoured even further into partisan bickering.

The upshot of the day's back-and-forth was this: Former Acting Attorney General Sally Yates, a holdover from the previous administration whom President Trump fired on Jan. 31, is not barred by the White House from testifying in open hearings in Congress.

Celiac disease, the autoimmune disorder that prevents people from digesting gluten, affects about 1 percent of the population.

But there's not enough evidence to recommend screening everybody to find that 1 percent, an advisory panel said Tuesday.

Exposure to lead as a child can affect an adult decades later, according to a study out Tuesday that suggests a link between early childhood lead exposure and a dip in a person's later cognitive ability and socioeconomic status.

Lead in the United States can come from lots of sources: old, peeling paint; contaminated soil; or water that's passed through lead pipes. Before policies were enacted to get rid of lead in gasoline, it could even come from particles in the fumes that leave car tailpipes.

Calls are growing for the Republican chairman of a key intelligence panel to recuse himself.

"There is such a cloud over the chairman's leadership," Adam Schiff of California, the ranking Democrat on the House Intelligence Committee, told NPR's Steve Inskeep on Morning Edition.

Schiff was referring to Chairman Devin Nunes, who revealed Monday that he had met with an intelligence official on the White House grounds a day before announcing that there was evidence he had seen to indicate the Trump campaign and transition were scooped up in incidental surveillance.

Updated at 11:40 a.m. ET

Just hours after South Korean officials announced they had found human bones and possessions in the corroded wreck of the Sewol, those same officials withdrew the claim Tuesday.

What appeared to be the "bones of a dead person on the deck" of the long-sunken ferry are actually from "an animal" instead, authorities said in a statement. The BBC reports the country's National Forensic Service conducted tests on the bones and found them to be animal bone fragments.

Officials in New York, California and elsewhere say they'll fight Attorney General Jeff Sessions' move to cut off billions in federal grant money to cities that don't share the Trump administration's strict approach to enforcing immigration laws.

"The Trump Administration is pushing an unrealistic and mean spirited executive order," New York City Mayor Bill de Blasio tweeted Monday night. "If they want a fight, we'll see them in court."

In the past, entrepreneur Elon Musk has described a "neural lace" that could add a symbiotic digital layer to the human brain. In the future, it seems, he'll try to build that device through a new company, Neuralink.

It's clear from the numbers. Google has a diversity problem.

For the past few years, the company has publicly shared its workplace makeup in a report detailing the race, gender and ethnicity of each employee hired the previous year. Last year, while the number of black employees went up, they still represented only 2 percent of the company's workforce and Google admitted it fell short of its diversity goal.

Pinkies Up! A Local Tea Movement Is Brewing

Mar 28, 2017

On Saturday mornings, the most popular item Minto Island Growers sells at its farmers market booth is not the certified organic carrots, kale or blueberries. It's tea.

The farm grows Camellia sinensis, tea plants, on a half-acre plot in Salem, Ore. The tender leaves are hand picked and hand processed to make 100 pounds of organic, small batch tea.

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Ahmed Kathrada spent decades in jail with Nelson Mandela, then spent the first years of democracy helping to shape the country's government after the fall of apartheid. Kathrada, 87, died in Johannesburg on Tuesday morning.

According to a statement posted by the Ahmed Kathrada Foundation, he "passed away peacefully after a short period of illness, following surgery to the brain."

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Good morning, I'm David Greene with some bizarre sports highlights.

(SOUNDBITE OF ARCHIVED RECORDING)

ERIC ALVAREZ: Before you ask, yes, I did make this segment with things I found lying around my desk.

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