Win $20,000: invent a toilet light
The light is for use in refugee camps - it must be cheap, easy to maintain and hard to steal
Burundi police try to stop party meeting as crisis deepens - witnesses
BURUNDI-POLITICS/:Burundi police try to stop party meeting as crisis deepens - witnesses
African nations form G5 to work on Sahel security, development
Mauritania, Mali, Niger, Chad and Burkina Faso will work together to identify priority investment projects and seek sources of international financing, focusing on areas such as infrastructure, food security, agriculture and pastoralism
Rebel fighters listen to their commander in a rebel-controlled territory in Upper Nile State
Rebel fighters listen to their commander in a rebel-controlled territory in Upper Nile State February 15, 2014. Picture taken on February 15, 2014. REUTERS/Goran Tomasevic (SOUTH SUDAN - Tags: CIVIL UNREST POLITICS TPX IMAGES OF THE DAY)
A rebel fighter talks to his comrades in a rebel-controlled territory in Upper Nile State
A rebel fighter talks to his comrades in a rebel-controlled territory in Upper Nile State February 15, 2014. Picture taken on February 15, 2014. REUTERS/Goran Tomasevic (SOUTH SUDAN - Tags: CIVIL UNREST POLITICS TPX IMAGES OF THE DAY)
A rebel fighter takes a break after a long walk in rebel-controlled territory in Upper Nile State
A rebel fighter takes a break after a long walk in rebel-controlled territory in Upper Nile State February 15, 2014. Picture taken on February 15, 2014. REUTERS/Goran Tomasevic (SOUTH SUDAN - Tags: CIVIL UNREST POLITICS TPX IMAGES OF THE DAY)
A rebel fighter holds a spear as he listens to his commander in a rebel-controlled territory in Upper Nile State
A rebel fighter holds a spear as he listens to his commander in a rebel-controlled territory in Upper Nile State February 15, 2014. Picture taken on February 15, 2014. REUTERS/Goran Tomasevic (SOUTH SUDAN) - Tags: CIVIL UNREST POLITICS)
Rebel fighters listen to their commander in a rebel-controlled territory in Upper Nile State
Rebel fighters listen to their commander in a rebel-controlled territory in Upper Nile State February 15, 2014. Picture taken on February 15, 2014. REUTERS/Goran Tomasevic (SOUTH SUDAN - Tags: CIVIL UNREST POLITICS)
Rebel fighters listen to their commander in a rebel-controlled territory in Upper Nile State
Rebel fighters listen to their commander in a rebel-controlled territory in Upper Nile State February 15, 2014. Picture taken on February 15, 2014. REUTERS/Goran Tomasevic (SOUTH SUDAN - Tags: CIVIL UNREST POLITICS)