Greenspan, a Republican whose 18-year tenure as head of the US Federal Reserve was widely admired, will also deliver a stinging critique of President George W Bush's economic policies.
it is his view on the motive for the 2003 Iraq invasion that is likely to provoke the most controversy. "I am saddened that it is politically inconvenient to acknowledge what everyone knows: the Iraq war is largely about oil," he says.
Britain and America have always insisted the war had nothing to do with oil. Bush said the aim was to disarm Iraq of weapons of mass destruction and end Saddam's support for terrorism.