AFGHANISTAN, HELMAND PROVINCE, CHARAHI QAMBAR CAMP - MAY 9:  Three children walking through a lane where the camp's dirty waters are discarded, May 9, 2009 in Helmand Province, Afghanistan.  In the North of Kabul, the Charahi Qambar camp shelters refugees from Helmand province, where the International Security Assistance Force operates.  (Photo by Reza/Getty Images)