Water runs in one of the springs in Silala, about 800 km (497 miles) south of La Paz, September 2, 2009. Chile and neighboring Bolivia are discussing a deal under which Chilean companies would pay South America's poorest country for using water from a river that flows across their shared border. Bolivia has long insisted that it should be compensated for use of water flowing down the Silala river into Chile, and under the deal Chilean companies would pay Bolivia for some of the water they use. Landlocked Bolivia lost its only sea access during the War of the Pacific with Peru and Chile in the late 19th century, and the issue has long strained ties. REUTERS/David Mercado (BOLIVIA POLITICS ENVIRONMENT)
REUTERS/DAVID MERCADO