Music classes in childhood may lead to changes in the brain

How overfishing threatens Asia's wild fish stocks

US presidential debate a 'Game Changer'(视频)

Arrests in the shooting of a Pakistani schoolgirl

Student street clinic helps homeless(视频)

How to win a debate, Presidential or otherwise

'Haunted Houses' attract big crowds on Halloween

Effort underway to boost US voter participation(视频)

New report outlines strategy for HIV/AIDS

Obama appeals to public about 'fiscal cliff'

Nobel Prize in economics recognizes 'market designers'

Refugee camps are a breeding ground for disease

Slow progress on curbing deforestation expected at climate conference

Many millions suffer from depression

Unusual Mars rock surprises rover scientist

Interfaith worshipers celebrate sea, surf

Number of Chinese students in US dramatically expands

Early detection and treatment a must for glaucoma patients(视频)

Polio victim searches for love in 'The Sessions'

Clowning around; making magic; hair care for less

Colonizing expands in the American Northeast

Obama calls human tafficking 'slavery'

Violin maker keeps family tradition alive

Meat was main dish for early humans

Consumer spending will decline unless Congress averts fiscal cliff

US president chosen by electors, not popular vote

Seeking HIV tests for all in US age 15-65

West Nile surge keeps exterminator busy

South pacific islands now totally powered by the sun

William Shakespeare: Star of stage and screen