The man backed by many in the Bush administration to head Baghdad's postwar government said Sunday that documents uncovered over the weekend show that Saddam Hussein tried to recruit U.S. citizens to undermine the Bush adminsitration's war effort in Iraq. "We have captured a great many files of Saddam's services and there is astounding information about the extent of their networks and their efforts to recruit foreign nationals - including Americans - to work in the Mukabahrat [Iraqi intelligence service]," said Ahmed Chalabi, head of the Iraqi National Congress. "I think that this is something that must be pursued,"...