A malnourished boy cries in his home in Sanaa June 20, 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 20, 2012. To match Interview YEMEN-HUNGER/ REUTERS/Mohamed al-Sayaghi (YEMEN - Tags: SOCIETY POVERTY HEALTH)