A new autonomous robot can cruise underwater for seven months on a single battery charge.
Although built for battle, these inventions are perfect in peacetime.
Militants took control of a strategic district outside Kandahar. Afghan and foreign troops flew to the city in response.
The UN High Commissioner for Refugees estimates 67 million displaced people worldwide in 2007, a result of war, poverty, and climate change.
An eight-month review by McClatchy newspapers says the US wrongfully imprisoned many suspected Al Qaeda terrorists.
President Hamid Karzai threatened Sunday to send troops to Pakistan to fight militants themselves.
Afghans sought help for its $50 billion five-year plan as donors met in Paris June 12.