WASHINGTON The leader of the tribal confederation that has fought to expel Al Qaeda from most of Iraq's Anbar province is offering his men to help gin up a rebellion against Osama bin Laden's organization along the Afghanistan-Pakistan border. In an interview, Sheik Ahmad al-Rishawi told The New York Sun that in April he prepared a 47-page study on Afghanistan and its tribes for the deputy chief of mission at the American embassy in Kabul, Christopher Dell. When asked if he would send... ...