Well, the money went somewhere - and apparently very little went into actually rebuilding Iraq:

Federal authorities examining the early, chaotic days of the $125 billion American-led effort to rebuild Iraq have significantly broadened their inquiry to include senior American military officers who oversaw the program, according to interviews with senior government officials and court documents.

Court records show that last month investigators subpoenaed the personal bank records of Col. Anthony B. Bell, who is now retired from the Army but who was in charge of reconstruction contracting in Iraq in 2003 and 2004 when the small operation grew into a frenzied attempt to remake the country’s broken infrastructure. In addition, investigators are examining the activities of Lt. Col. Ronald W. Hirtle of the Air Force, who was a senior contracting officer in Baghdad in 2004, according to two federal officials involved in the inquiry.

It is not clear what specific evidence exists against the two men, and both said they had nothing to hide from investigators. Yet officials say that several criminal cases over the past few years point to widespread corruption in the operation the men helped to run. As part of the inquiry, the authorities are taking a fresh look at information given to them by Dale C. Stoffel, an American arms dealer and contractor who was killed in Iraq in late 2004.

Before he was shot on a road north of Baghdad, Mr. Stoffel drew a portrait worthy of a pulp crime novel: tens of thousands of dollars stuffed into pizza boxes and delivered surreptitiously to the American contracting offices in Baghdad, and payoffs made in paper sacks that were scattered in “dead drops” around the Green Zone, the nerve center of the United States government’s presence in Iraq, two senior federal officials said.

Mr. Stoffel, who gave investigators information about the office where Colonel Bell and Colonel Hirtle worked, was deemed credible enough that he was granted limited immunity from prosecution in exchange for his information, according to government documents obtained by The New York Times and interviews with officials and Mr. Stoffel’s lawyer, John H. Quinn Jr. There is no evidence that his death was related to his allegations of corruption.