Warlord's son, fighters killed by US forces Islamabad _ Rebel Afghan warlord Pacha Khan Zadran lost a son and nine fighters in a clash with United States forces in eastern Afghanistan, a news report said yesterday. American forces used heavy artillery and helicopter gunships in the four-hour fight on Sunday in Sata Kandow area south of Gardez city on the highway to Khost, the Afghan Islamic Press agency reported. Spokesman Ghami Khan said 10 Zadran fighters, including his son Jilani Khan, were killed and 10 others were wounded. Mr Zadran revolted against the US-backed Afghan President Hamid Karzai last year....