Men face higher death risk, but why?

US firms prospering in Asia, Russia(视频)

Cancer drug finds HIV hidden in the body

Vietnamese-American doctor helps rebuild bodies, lives(视频)

After long fight, DC wins right to a statue in the Capitol Building

From Giverny to Bronx: 'Monet's Garden' flowers in NY(视频)

US ambassador killed in Libya

The Occupy Movement turns one

Worries about rising food prices may ease

New heart stents better than old ones, study says

Man who found California gold died broke

Carlsbad Caverns National Park in New Mexico

Touring colleges, without ever leaving home

American history: Columbus discovers the New World

Protests spread over anti-Islam video

Sea life color codes food to evade danger

IB program aims to form 'students of the world'(视频)

2012 Americana Music Award nominees announced

Dire warnings issued on diminishing Arctic ice(视频)

Easing pain in the sick and dying

Turning industrial waste-heat into electricity

English settlers establish colonies In the New World

Nokia, Microsoft promote new phones

US automakers bet billions on Russian car boom

US drought renews debate on biofuel

Tree deaths linked to climate change

Reality of mormon life more complex than Romney image(视频)

Refugee camps spread life-threatening diseases

US beefs up security after embassy attacks(视频)

Mideast protests spark debate over free speech, religion(视频)