KABUL, Afghanistan, July 28, SPA -- NATO says its troops have killedtwo children in southern Afghanistan by opening fire on a car that they feared was about to attack their convoy. The alliance said in a statement issued Monday that thetroops opened fire on the car in Kandahar province afterits driver ignored repeated signals to keep its distance, according to a report of the Associated Press.--SPA www.spa.gov.sa/577485