From Wikipedia
Iraq War misappropriations refers to allegations that billions of dollars have not been properly accounted for or misappropriated during the Iraq War from funds released by the United States Congress for programmes, including the re-construction and re-building of Iraq, after the war. United States Department of Justice/White House issued gagging orders are preventing further inquiry into the allegations.
The United States Department of Justice has 900 cases of alleged fraud by contractors to investigate.. The Defense Contract Audit Agency similarly has uncovered billion in questionable Iraq contracts and a US audit found that the occupation authority lost track reconstruction funds totalling nearly billion.
Henry Waxman, Chairman of the United States House of Representatives committee on oversight and government reform, said: "The money that's gone into waste, fraud and abuse under these contracts is just so outrageous, it's egregious. It may well turn out to be the largest war profiteering in history."