U.S.

Potential Geithner Departure Could Complicate Debt Ceiling Battle

President Obama may go into the next round of fiscal battles without his long-time Treasury Secretary. Tim Geithner reportedly plans to step down in January, even as the Treasury Department is scrambling to avoid cracking the government's debt ceiling. Robert Siegel talks with Scott Horsley about that and other personnel changes as the president prepares for his second term.

From Canada To Latin America, The Christmas Bird Count Is On

Since 1900, citizen scientists across the Americas have braved bad weather and lack of sleep to participate in the yearly count — essentially, a bird-watching marathon. In the process, these birds have created the world's longest-running database in ornithology and given scientists a great tool for assessing the health of bird populations.