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HealthDay - WEDNESDAY, Dec. 23 (HealthDay News) -- Seniors who are exposed to significant levels of air pollution for more than a year face double the risk of pneumonia, Canadian researchers report.

The Christian Science Monitor - For Taliban fighters infiltrating Helmand Province from Pakistan, one ratline proved simple. They crossed open desert of pebble, sage, and moon dust toward a lonely mountain ridge, and entered Khan Neshin, a gateway to both the Helmand River Valley and one of the bloo ...

AP - As efforts falter to save North America's largest freshwater fish — a toothless beast left over from the days of dinosaurs — officials hope to stave off extinction by sending more water hurtling down a river so the fish can spawn in the wild.

Reuters - President Barack Obama said on Wednesday that disappointment over the outcome of the Copenhagen climate change summit was justified, hardening a widespread verdict that the conference had been a failure.

AP - The weather was forecast to become more wintry across the Central U.S. as a low pressure system continued to strengthen Wednesday. Flow around this large system was expected to pull abundant moisture into the Plains from the Gulf of Mexico. Forecasters expected the low pressure system, cool air ...

AP - When Corey Marshall's Blackberry mysteriously stopped sending and receiving messages, he realized all too clearly just how much he depends on the device: He had no way of contacting his friends because he never bothers to exchange phone numbers with anyone anymore.

PC World - Google's purchase of mobile advertising provider AdMob for $750 million has drawn closer regulatory scrutiny as U.S. antitrust officials have asked Google for more information on the deal, Google said in a blog post Wednesday.

PC World - Hackers have exploited flaws in a popular open-source advertising software to place malicious code on advertisements on several popular Web sites over the past week.

AP - Twitter is buying a startup called Mixer Labs in an effort to pinpoint the locations of people posting short messages on its service.

Reuters - Apple Inc has reserved space in late January at a venue in San Francisco in advance of a planned product announcement, the Financial Times reported on its blog on Wednesday.

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