Police in Peru have arrested four people accused of killing dozens of people in order to extract their body fat and sell it for cosmetic use. More4 News reports.
Microsoft Bing's Stefan Weitz talks to Channel 4 News online about the future of web search engines and how keywords could soon be a thing of the past.
State Department civilians are learning about the challenges they will face in Afghanistan as part of the United States' "civilian surge". Sarah Smith reports.
The US space agency Nasa has found "large amounts" of water on the moon, after smashing a rocket and probe into a large crater at the lunar south pole.
