Food security has arisen again on the development agenda. High and volatile food prices took a toll in 2007–08, and in many low-income countries agricultural yields have risen little, if at all, in the last decade. Moreover, food production in these poor countries is especially vulnerable to climate change. Meeting this demand is a global challenge. The Food and Agriculture Organization of the United Nations (FAO) is expected to lead the way in meeting this challenge and, with the arrival in 2012 of the first new director-general in 18 years, it has an opening to restructure itself to do so.