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Republican presidential candidate Mitt Romney says America's national security priority should be preventing Iran from acquiring a nuclear weapon, and he was talking tough about this in his recent stop in Jerusalem.

"History teaches with force and clarity that when the world's most despotic regimes secure the world's most destructive weapons, peace often gives way to oppression, to violence, or to devastating war," Romney said. "We must not delude ourselves into thinking that containment is an option."

The Internet is slowly becoming a less anonymous place. YouTube has a new policy encouraging commenters to use their real names, and many news sites have switched to a login system run by Facebook.

News sites that still allow anonymous comments are finding there are legal risks. The Spokesman-Review newspaper in Spokane, Wash., has spent the last few months trying to protect the identity of a reader who saw a photo of a Republican Party official in Idaho named Tina Jacobson, and then posted a disparaging comment.

The NPR Cities Project has been asking listeners to tell us about the heart of their city. In this edition, we hear sounds of transit from across the country. You can see the submissions and contribute your own photos here.

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AUDIE CORNISH, HOST:

From NPR News, this is ALL THINGS CONSIDERED. I'm Audie Cornish. Republican presidential candidate Mitt Romney wrapped up a week-long foreign trip today with a speech in Warsaw. Romney hailed Poland as a symbol of economic and political freedom and met with Polish leaders before boarding a plane for the U.S.

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AUDIE CORNISH, HOST:

As Mitt Romney returns from Poland, the suspense continues to build over who he'll pick as his running mate. And Romney's campaign has been stoking the tension. Earlier this month, they offered a lottery to supporters who donated a mere $3. The prize, a meeting with Romney and his V.P. pick. Last week, the woman in charge of the search for a vice presidential candidate, Beth Myers, tweeted out the names of several top contenders, sending the Twitter world into a tizzy.

Audie Cornish speaks with a high school student who gathered almost 120,000 signatures on a petition she created with two civics classmates. Emma Axelrod of Montclair, N.J., and her friends are asking the Commission on Presidential Debates to select a woman to moderate at least one of this fall's presidential debates. The young women point out in their petition that it's been 20 years since a female moderator has run a presidential debate. They tried to deliver that petition to the Commission in Washington, D.C., on Tuesday.

Self-service kiosks have become part of daily life for many people. We use them to get our boarding passes at the airport, to check out at the grocery store and to rent movies. Now some industry watchers predict they could fundamentally change the way we get our healthcare. A pilot project in New Hampshire aims to pump up the number of potential bone marrow donors.

The tiny Himalayan kingdom of Bhutan drew international attention a few years back for saying gross national happiness should trump gross domestic product when measuring a nation's progress. If you're going to prioritize happiness, the Bhutanese thinking goes, you'd better include the environment and spiritual and mental well-being in your calculations.

A federal regulator is blocking the government-owned mortgage giants Fannie Mae and Freddie Mac from reducing the principal that homeowners owe on their mortgages in order to avoid foreclosures.

Tuesday's decision came from Edward DeMarco, the acting director of the Federal Housing Finance Agency.

A voluntary moratorium on certain experiments involving forms of bird flu altered in laboratories should continue until there can be more public discussion of safety concerns, a prominent government official told flu researchers at a meeting in New York City Tuesday.

What does President Obama have in common with his immediate White House predecessor?

Both men spent a disproportionate amount of their first terms making appearances in battleground states, Brendan Doherty, a political scientist at the U.S. Naval Academy, writes in a post on The Monkey Cage political-science blog.

When you spend hours on end at a media center, even if it's on an assignment as terrific as the Summer Olympics, the refreshments can get to be, well, familiar.

But no contempt has been bred here. That's partly because of Innocent brand juice — the "official smoothie and juice of the London 2012 Olympic games," as the label says.

And any drink that can make us chuckle on deadline is greatly appreciated. Especially if it's what's on the outside of the bottle that makes us laugh.

Microsoft announced that Hotmail — the email service with 324 million users — will transition into a web and more social version of Microsoft's Outlook.

Reuters reports that Microsoft made the announcement, as they showed off their free web version of the email program it is renowned for.

Reuters adds: