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."

Egypt's capital, Cairo, is now synonymous with protests and sometimes violence. Late at night, the once-bustling downtown streets are largely empty these days. People worry about getting mugged or caught up in a mob.

But the recent Downtown Contemporary Arts Festival is an attempt to revitalize the area with music, art and culture in the old and forgotten venues of downtown Cairo, like the Qasr El Nil Theater.

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.

This week, Google, already a leader in mapping, created more space between itself and its competitors by more deeply mining the data users provide the company when using its various services.

At the Google developers' conference in San Francisco on Wednesday, Daniel Graf, director of Google Maps, crowed about the company's mapping app for the iPhone — and couldn't quite stop himself from taking a dig at Apple.

"People called it sleek, simple, beautiful, and let's not forget, accurate," he said.

A couple generations ago, when older Americans retired they could rely on pension plans to support them. Then, in the late 1970s and early 1980s, many companies switched their retirement plans over to 401(k) accounts. The security of workers' retirement savings suddenly became subject to the vagaries of the stock market.

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?