Thursday marks Kyron Horman's 8th birthday. And four months after a criminal investigation began into the Oregon boy's disappearance, officials continue to ask the public for leads and tips.

China's capital will step up surveillance of antibiotic-resistant bacteria, in response to a superbug that first emerged in South Asia and is spreading globally, state media said.

The president's chief of staff could leave his post soon. Here's what the White House would be missing.

Shares of the New York Times Company jumped Wednesday on rumors that the world's richest man could increase his stake in the newspaper publisher.