The billions of dollars of American aid flowing into Afghanistan every year may be inadvertently fueling the insurgency and the corruption rampant within the government and financial sectors, according to a new report. The audit by the Special Inspector General for Afghanistan Reconstruction concluded that lack of oversight or control of where money is disbursed has left vast sums of U.S. aid “vulnerable to fraud or diversion to insurgents.”

Public support for the war has been waning primarily due to doubts about the failed military strategy, but the fact that taxpayer money is counterproductive to the war aims should bring added criticism. Indeed, the report details several instances where the Karzai government deliberately obstructed anti-corruption efforts by U.S. agencies and refused to prosecute Afghan criminals, despite the faithful flow of American money.