The US flew nearly $12bn in shrink-wrapped $100 bills into Iraq, then distributed the cash with no proper control over who was receiving it and how it was being spent.

In the year after the invasion of Iraq in 2003 nearly 281 million notes, weighing 363 tonnes, were sent from New York to Baghdad for disbursement to Iraqi ministries and US contractors. Using C-130 planes, the deliveries took place once or twice a month with the biggest of $2,401,600,000 on June 22 2004, six days before the handover.

"One CPA official described an environment awash in $100 bills," the memorandum says. "One contractor received a $2m payment in a duffel bag stuffed with shrink-wrapped bundles of currency. Auditors discovered that the key to a vault was kept in an unsecured backpack.

"They also found that $774,300 in cash had been stolen from one division's vault. Cash payments were made from the back of a pickup truck, and cash was stored in unguarded sacks in Iraqi ministry offices. One official was given $6.75m in cash, and was ordered to spend it in one week before the interim Iraqi government took control of Iraqi funds."

The minutes from a May 2004 CPA meeting reveal "a single disbursement of $500m in security funding labelled merely 'TBD', meaning 'to be determined'.

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https://www.theguardian.com/world/2007/feb/08/usa.iraq1

https://en.wikipedia.org/wiki/Coalition_Provisional_Authority