BUENOS AIRES, Argentina -- They line up early every Saturday morning at the decrepit gymnasium that houses the La Matanza Barter Club. Nelly Vasquez and her 6-month-old daughter, Antonella trades wool for food. Club members shuffle in carrying sacks stuffed with everything from homemade clothing to homegrown vegetables, set up their stands and begin a day of bartering. The La Matanza Barter Club in the working-class Buenos Aires neighborhood of Isidro Casanova is one of more than 100 that now function throughout Argentina. They provide a vital service for people who are short on cash by helping them make ends meet.


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Nelly Vasquez, 29, goes to the club because she has no other options.


London (CNN) -- If keeping track of friends was the first wave of social media, the next may be all about hooking up with strangers. Apps designed to connect like-minded people, both online and in the real world, are being promoted as potentially capable of generating the kinds of billions Facebook may or may not be worth. But to achieve this, tech companies must encourage users to make a leap into an unknown world and throw private information into a void. "If we get this right, I cannot think of a bigger thing to be working on right now," said Paul Davison, CEO of Highlight, one of the most buzzed-about of such apps to emerge this year. "We can take billions and billions of dollars."

While some may doubt Highlight's ability to persuade a mass-market audience to share with strangers, Davison's goals aren't without precedent -- largely thanks to a trail blazed by similar app
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Badoo.


For the first time since detailed records began being kept in 1992, undocumented immigrants from Mexico made up less than half of those apprehended by U.S. Customs and Border Protection. More Central Americans were caught crossing into the United States illegally than Mexicans, according to statistics released Friday by the Department of Homeland Security. While Mexicans made up the single largest nationality apprehended by CBP, the combined number of Hondurans, El Salvadorans and Guatemalans apprehended was even larger. "It's the first time in recent history where (migrants other than Mexicans) exceeded Mexican nationals," a DHS official said. But the big picture remains the same: Statistics show that the number of apprehensions of undocumented immigrants remains low, compared to a peak in 2000.

Removals of Central Americans increased in 2014, the agency reported, while removals of
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Mexican decreased.