TANYA NOLAN: As the President talks up the future of Iraq, Washington has launched an investigation into some of the past claims for going to war. The FBI has been asked to look at claims that some government officials had allegedly provided unauthorised and highly classified information to Ahmed Chalabi's Iraqi National Congress that was then passed on to Iran. The investigation comes amid claims that Iran used the US to topple Saddam Hussein's regime, by providing intelligence on weapons of mass destruction to Mr Chalabi and the INC – intelligence which later was proved to be false. A member...