A private Afghan security guard walks past the site of a roadside bomb explosion in southern Kandahar Afghanistan , 05 August 2007 . A bomb planted on a road side hit two civilian vehicles killing six people , in Kandahar . EPA / HUMAYOUN SHIAB < 저작권자 ⓒ 2007 연 합 뉴 스 . 무단 전재 - 재 배포 금지 . >