Colonizing expands in the American Northeast
Arrests in the shooting of a Pakistani schoolgirl
America's break with Britain divides families and friends
Palestinians cheer UN General Assembly vote
Environmentalists worried over increased production of autos
Scientists search for new ways to treat infection
NYC schools expand birth control availability
Many millions suffer from depression
Mobile phones could help efforts to end malaria
Seattle, 'City of Clocks' keeps on ticking
French experts question GMO cancer study
Wastewater plants extract nutrients from sewage
Unusual Mars rock surprises rover scientist
Polio victim searches for love in 'The Sessions'
Student street clinic helps homeless(视频)
Demand for wheat growing in Sub-Saharan Africa
Irrigation pioneer wins world food prize
Interfaith worshipers celebrate sea, surf
Violin maker keeps family tradition alive
Electronic dance music bounds into mainstream
Maryland shop cooks up chocolate vote
Marian Anderson: Her voice became famous around the world
Consumer spending will decline unless Congress averts fiscal cliff
Clowning around; making magic; hair care for less
West Nile surge keeps exterminator busy
Number of Chinese students in US dramatically expands
United Nations report urges
World AIDS Day 2012 more hopeful than in past
Seeking HIV tests for all in US age 15-65
Visit to a medical museum