Customers order a popular Yemeni meal known as Al-Saltah, at a restaurant in Sanaa July 3, 2013. According to the United Nations, there are approximately five million people in Yemen who are either suffering from food insecurity or are at risk of acute food insecurity caused by rising food and fuel prices and political instability. REUTERS/Mohamed al-Sayaghi (YEMEN - Tags: FOOD SOCIETY BUSINESS)