Bolivian policemen line up in front of a passenger jet belonging to Bolivia's biggest airline Lloyd Aereo Boliviano (LAB) on the main runway at an airport in Cochabamba, central Bolivia, March 31, 2006. Workers from Bolivia's flag airline blocked the runway at the international airport in the city of Cochabamba on Thursday, calling for the government to save the debt-crippled carrier. REUTERS/David Mercado