The World Food Program says its food voucher program in Burkina Faso has been expanded and now reaches 180,000 people in the country's two biggest cities. The WFP says the project improves peoples' access to food, while helping to boost the local economy. [..] WFP spokeswoman Emilia Casella tells VOA food is usually available in urban markets. But, many poor people cannot afford to buy it. She says distributing vouchers, instead of food, can be a more effective way of alleviating hunger in urban areas without destabilizing the market. "In essence, we are supporting the market because the vouchers permit the people who receive those vouchers to go to vendors and sellers who have been approved to participate in the program and exchange the voucher for food,"Casella said.