UN Secretary-General Ban Ki- moon addresses the ceremony marking the Universal Children's Day and the 20th anniversary of the Convention on the Rights of the Child at the UN headquarters in New York Nov. 20, 2009. Ban Ki- moon Friday called on the international community to "seize the opportunity and build a world that is fit for children" at a time when children across the globe fall victim to preventable diseases, such as malnutrition, violence and exploitation. (Xinhua/Shen Hong)
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