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Four years ago, 21 men with intellectual disabilities were emancipated from a bright blue, century-old schoolhouse in Atalissa, Iowa. They ranged in age from their 40s to their 60s, and for most of their adult lives they had worked for next to nothing and lived in dangerously unsanitary conditions.

Earlier this month, the Equal Employment Opportunity Commission won a massive judgment against the turkey-processing company at which the men worked. The civil suit involved severe physical and emotional abuse of men with intellectual disabilities.

Stimulating the brain with a very small electrical current through the forehead could boost a student's ability to learn and remember basic mathematics, a provocative experiment suggests.

The work, published online Thursday by the journal Current Biology, could help those who struggle with mental arithmetic. But the study was small and the long-term effect wasn't profound.

Hundreds of underground passageways wind like a maze beneath the Egypt-Gaza border, providing a way for Gazans to maneuver around the 2007 Israeli-led economic blockade that took effect after Hamas took control of the Gaza Strip.

And while subterranean tunnels may seem like something out of a thrilling spy movie, the reality and practicality of these channels is somehow not surprising.

Pope Francis has demanded that financial and political leaders reform the global money system to make it more equitable.

"Money has to serve, not to rule!" the pontiff declared.

As The Associated Press writes:

"It's a message Francis delivered on many occasions when he was archbishop of Buenos Aires, and it's one that was frequently stressed by retired Pope Benedict XVI.

"Francis, who has made clear the poor are his priority, made the comments as he greeted his first group of new ambassadors accredited to the Holy See."

When the Senate voted Tuesday to make Marilyn Tavenner the official administrator of the Centers for Medicare and Medicaid Services, it was the first time the world's greatest deliberative body had approved someone to head the huge health agency since 2004.

That's right, you have to go way back to the Bush administration to find Dr. Mark McClellan, the last person to be officially put in the post.

After a long bumpy ride that started five years ago, the domestic airline industry seems to be pulling up and smoothing out.

The number of passengers planning to fly this summer will tick up 1 percent from 2012, climbing back to the highest level since 2008, an industry group said Thursday.

The airlines' profit outlook is also brighter, as jet fuel prices have settled down a bit. Passenger complaints are quieting down, too.

Days after the marathon bombing, officials established the One Fund for Boston to assist victims and their families. Attorney Ken Feinberg, who managed similar funds after Sept. 11 and Virginia Tech and is managing this fund, says there's no easy way to decide who gets how much of the $30 million that's been donated.

Update at 5:38 p.m. ET. One More IRS Official To Leave

Another official is out at the embattled agency.

The Associated Press reports that Joseph Grant, commissioner of the IRS' tax exempt and government entities division, will retire June 3. The division scrutinized Tea Party groups when the applied for tax-exempt status.

Update at 4:45 p.m. ET. Obama Names New IRS Acting Chief

A study published online recently in the journal Environmental Health Perspectives documented slightly elevated levels of arsenic in samples of chicken purchased at grocery stores in 10 cities in the U.S.

So how did trace amounts of this toxin end up in supermarket poultry?

Perhaps you've noticed a toddler's sagging swim diaper and wondered if it's really keeping the poop out of your neighborhood pool.

The Centers for Disease Control and Prevention has the answer for you: no.

Last summer, researchers at the federal public health agency collected 161 filter samples from public swimming pools in the Atlanta area. More than half of those samples, 58 percent, were contaminated with E. coli.

That, the CDC reported today, "signifies that swimmers introduced fecal matter into pool water."

Police in Albuquerque, N.M., are interviewing a man they say is a "person of interest" in the abduction of a five-year-old girl. After the girl was taken Wednesday evening, her mother chased down and rammed the car she had been in; a suspect fled on foot. Authorities say the girl is safe; she was pushed out of the car shortly after being taken.

Update at 3:30 p.m. ET. 'Person Of Interest' Found:

Some stories are indeed too good to be true.

This BBC headline had us punching the Two-Way control board to go to light speed in pursuit of appropriate puns:

"Star Wars and Doctor Who fans clash at Norwich convention"

Billionaire investment legend Warren Buffett's Berkshire Hathaway Inc. has had its credit rating lowered from AA+ to AA by Standard & Poor's Ratings Services.

In a statement, S&P says that even though Berkshire Hathaway has an "excellent business profile," the lower credit rating "better reflects our view of BRK's dependence on its core insurance operations for most of its dividend income." (S&P's statement is posted on its website, but you have to register to view it.)

Rutgers University officials are welcoming the arrival of new athletic director Julie Hermann as the beginning of a new era, as the school seeks to rebound from the turmoil that recently engulfed its athletics department.

In a message written on a wall of the boat where he was found hiding, Boston bombings suspect Dzhokhar Tsarnaev claimed responsibility for the attack and said it was motivated by anger over the Afghan and Iraq wars, sources familiar with what was found have told CBS News correspondent John Miller.