A doctor holds a malnourished boy as his mother sits at a therapeutic feeding centre in the southern Yemeni city of Taiz June 30, 2012. One million Yemeni children face severe malnutrition within months as families struggle to pay for food in one of the Arab world's poorest countries, the U.N. World Food Programme has warned. Political turmoil has pushed Yemen to the brink of a humanitarian crisis and aid agencies estimate half the country's 24 million people are malnourished. Picture taken June 30, 2012. To match Interview YEMEN-HUNGER/ REUTERS/Khaled Abdullah (YEMEN - Tags: POLITICS CIVIL UNREST HEALTH SOCIETY TPX IMAGES OF THE DAY)