A Tamil woman sits with her children next to their tent at the Manik Farm refugee camp located on the outskirts of the northern Sri Lankan town of Vavuniya May 26, 2009. U.N. Secretary-General Ban Ki-moon toured Sri Lanka's largest war displaced persons camp on Saturday during a trip to press for wider humanitarian access and political reconciliation. REUTERS/David Gray (SRI LANKA MILITARY CONFLICT POLITICS SOCIETY)