Teenage girls gather in August outside an ice cream shop in Portland, Ore. A new Pew Research Center study finds that while teens use social media and other digital tools in all aspects of their romantic relationships, most still initially meet — and break up with — their love interests face-to-face. Beth Nakamura/The Oregonian/Landov hide caption

itoggle caption Beth Nakamura/The Oregonian/Landov

"We don't collect a lot of your data and understand every detail about your life. That's just not the business that we are in," says Apple CEO Tim Cook, shown here at the NPR offices in Washington, D.C., on Thursday. Ariel Zambelich/NPR hide caption

itoggle caption Ariel Zambelich/NPR

Nurses Patricia Wegener (left) and Susan Davis at Mercy Hospital can monitor the condition of a patient who is miles away via the hospital's technology. But some health insurers and analysts remain skeptical that telemedicine saves money. Alex Smith/KCUR hide caption

itoggle caption Alex Smith/KCUR

Computer chips are seen on newly-issued credit cards. In an effort to reduce counterfeiting and credit card fraud, more than 200 million payment cards have been issued with embedded computer chips in the U.S. ahead of an Oct. 1 deadline, according to the Smart Card Alliance. Mike Blake/Reuters/Landov hide caption

itoggle caption Mike Blake/Reuters/Landov

A Volkswagen Passat is tested for exhaust emissions, at a Ministry of Transport testing station in London. In the U.S., a 1998 copyright law prevents safety researchers from accessing the software that runs cars. John Stillwell/PA Photos/Landov hide caption

itoggle caption John Stillwell/PA Photos/Landov

Former U.S. National Security Agency contractor Edward Snowden appears live via video during a student organized world affairs conference at the Upper Canada College private high school in Toronto in February. Mark Blinch/Reuters/Landov hide caption

itoggle caption Mark Blinch/Reuters/Landov

Atlanta is earning the nickname Silicon Valley of the South, joining spinoffs Silicon Alley in New York and Silicon Prairie in the Midwest. Greg Williams/Flickr hide caption

itoggle caption Greg Williams/Flickr
United Nations