President Obama attacked Republican rival Mitt Romney's budget math during a campaign rally in New Hampshire Monday. The Granite State has just four electoral votes, but it's expected to be hotly contested in November. The two presidential candidates also tangled over immigration policy on the same day the Supreme Court struck down portions of Arizona's immigration law.

Which costs more, a bottle of Fat Bastard or a Tselepou (TSe-le-po)? What about a Cupcake versus some other name that's difficult for Americans to pronounce? Turns out, when it comes to wine, research suggests that the name alone can affect how much consumers are willing to pay for it. But is it that easy to dupe an oenophile?

Yemen has long struggled as one of the least developed countries in the world. But now, after a year of protest and unrest that saw the country's longtime dictator step down, the situation for millions of Yemenis is dire.

Aid groups say some 10 million people are now without enough food to eat, and more than 200,000 children face life-threatening levels of malnutrition.

In a recession, watching the meter on a taxi tick higher and higher can be distressing. But in Burlington, Vt., the Recession Ride Taxi lets customers set their own price.

Eric Hagen is a Wall Street banker-turned-cab-driver whose one-man "pay-what-you-want" taxi service has accrued dozens of faithful customers.

'I'd Be Walking'

We eat a lot of meat in this country; per person, more than almost anywhere else on Earth. (Here's a helpful map of global meat-eating.)

But why? What makes an American eat ten or twelve times more meat than the average person in Mozambique or Bangladesh?

A key change was made to your Facebook profile recently that you may not have noticed yet. Facebook has replaced the primary email address users entered in their profile contact information with brand-new @facebook.com addresses. These addresses allow you to email external accounts from your Facebook inbox. Forbes first noticed the change:

The London Olympics are still more than a month away, but fans of swimming were eager to see the 2012 edition of the rivalry between Michael Phelps and Ryan Lochte get started Monday, when the two Olympic gold medalists face off in the final of the 400-meter individual medley at the U.S. Olympic Trials.

Update at 8:32 p.m. Lochte Beats Phelps

Lochte defeated Phelps at the U.S. Olympic swimming trials.

Here's more from The Associated Press:

A Greek city's new subway project has led to the discovery of an ancient road made of marble that was laid nearly 2,000 years ago. The road in Thessaloniki is made of paving stones that show signs of use by both horse-drawn carriages and local children, the AP reports.

Facebook now has a woman on its board of directors: The company announced Monday that Chief Operating Officer Sheryl Sandberg would join the board.

Sandberg, the company's No.2 executive, was hired away from Google in 2008.