US president attends inaugural prayer service
Music would not be the same without the guitar
Social Innovation Summit 2012 comes to an end
Getting a firm grip on weed control
Words and their stories: Belittle
Michelle Obama stuns in Jason Wu gown
WHO warns of malaria resurgence
Home TB treatment is helping patients in Swaziland
Abduction prompts girl to fight back for all women
Ocean floor reveals past climate changes
India's youth keep spotlight on violence against women
Words and their stories: state nicknames, part 3
Teenager wins top prize for pancreatic cancer test
Oxfam: Power, water shortages in Goma
Televisions stole the spotlight at the consumer electronics show
Student launches hospital for iPhones
Words and their stories: State nicknames, part 4
Watching for early signs of autism in babies
New rules aim to improve US food safety
A flower in winter: The story of the poinsettia
Tattoos illustrate art of saving lives
First lady's new hairstyle creates buzz
United States Senate's process of confirming the president's nominees
奥巴马发表农历蛇年贺词
California voters reject food labeling requirement
Gay rights groups push for anti-discrimination laws
Soaring population, climate change stress resources
Major progress in health through technology
除了说声Good luck，你还能怎么祝人家好运？
Washington insider Susan Rice could face tough nomination battle