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Wi-Fi is now available at 35,000 feet. Roughly 1 in 3 domestic planes already has it, and the number is growing. But one industry analyst says that many passengers who could be logging on aren't.

In February, North Korea agreed to freeze uranium enrichment and missile tests and allow international nuclear inspectors — and then immediately announced a rocket launch. North Korea watchers are puzzled by the mixed messages and wonder who is calling the shots in a country with a new, untested leader.

Dozens of websites have been secretly harvesting lists of places that their users previously visited online, everything from news articles to bank sites to pornography. A team of UCSD computer scientists -- a graduate student and 3 professors -- found that the practice of "history sniffing" is possible because of a weakness in web browsers which allows websites to do this.

The U.S. recently agreed to provide North Korea with food assistance, and it was hoped that this would help calm tensions in the region. But under its new leader, North Korea is now planning a rocket launch next month that's making everyone uneasy.

Every step we take, every move we make, somebody's watching us. If Greta Garbo — the iconic movie star who famously wanted to be left alone — were around today, she might be a prime customer of the online privacy industry.

Dr. James Maskalyk went to contested border town in Sudan with Doctors Without Borders. He treated patients and fended off a measles epidemic with limited resources. His six-month stint affected him more than he expected.

Social networking has almost doubled among people older than 50 in the past year, with 42 percent of seniors participating in the hot Internet trend. Using Facebook and other sites, seniors build support networks that help them begin a second career, prepare for retirement or deal with health issues, a Pew report finds.

The board of Yahoo Inc. rejects a $44.6 billion dollar buyout bid from Microsoft Corp., saying the offer was too low. Microsoft now must decide whether to increase its offer, launch a proxy fight or simply withdraw. Meanwhile, Yahoo is reaching out to other potential partners.

Street festivals are in full swing in San Diego now that spring has arrived. We'll talk about options for your weekend and get the behind-the-scenes scoop on Mel Gibson's new movie, "The Beaver."

The initiative, called Patch, launched its 100th local news site on Tuesday. AOL is expanding the program quickly and plans to cover 500 communities by the end of the year. But the company faces competition from well-established hyperlocal sites, and profitability remains to be seen.