"Good Faith" the Basis for Ensuring U.S. Aid Doesn't End Up in the Hands of the Wrong Syrian "Rebels"

Hey, "good faith" in an snake pit should be good enough, right?:

In recent weeks, the Obama administration and hawks favoring a strike on Syria have called for the continued support of supposedly moderate rebels fighting Bashar al-Assad's regime. The United States has been sending millions of dollars in nonlethal aid to the rebels since February, and in June President Obama authorized secretly supplying weapons to opposition fighters. But with hundreds of Syrian rebel groups battling the regime—ranging from the relatively moderate Free Syrian Army (FSA) to the Al Qaeda-affiliated al-Nusra Front—can the administration ensure that US aid is not winding up in the wrong hands? A system designed to monitor the disbursement of nonlethal supplies to the rebels is supposed to make sure assistance goes only to vetted fighters—but, according to government oversight experts, it relies on too much good faith. 

The Syrian Support Group, a US-based nonprofit that is the only organization the Obama administration has authorized to hand out nonlethal US-funded supplies to the rebels, insists it keeps track of who's receiving this assistance based on handwritten receipts provided by rebel commanders in the field. According to Dan Layman, a spokesman for the group, this level of oversight is sufficient to guarantee US assistance is going to the right rebels and is being used appropriately. "What we're getting from [FSA commanders] in receipts directly reflects what's been given out and to whom, I'm very confident," he says. "The government regularly asks us for updates and new receipts, often faster than we can produce them." Layman doesn't know if or how the US government verifies these receipts...

What could possibly go wrong?