Colonizing expands in the American Northeast

Music classes in childhood may lead to changes in the brain

New report outlines strategy for HIV/AIDS

American history: A new world clash of cultures

Arrests in the shooting of a Pakistani schoolgirl

World AIDS Day 2012 more hopeful than in past

Clowning around; making magic; hair care for less

West Nile surge keeps exterminator busy

FTC takes on computer scareware scammers

Student street clinic helps homeless(视频)

Seattle, 'City of Clocks' keeps on ticking

Obama appeals to public about 'fiscal cliff'

Effort underway to boost US voter participation(视频)

Femen's topless protest tactics hit Paris(视频)

Was Jesus married?

Apollo's final missions: The last footsteps on the moon

Slow progress on curbing deforestation expected at climate conference

William Shakespeare: Star of stage and screen

Number of Chinese students in US dramatically expands

Cheating scandal threatens Harvard's image

America's break with Britain divides families and friends

Palestinians cheer UN General Assembly vote

Words and their stories: Fall guy

US president chosen by electors, not popular vote

When it comes to beer, variety rules in USA

Some illegal immigrants allowed to stay under Obama order

South pacific islands now totally powered by the sun

Musical legend Chuck Berry still reeling and rocking on stage at 86

Obama calls human tafficking 'slavery'

Rare fungal meningitis outbreak in United States