Sounds even fuzzier than how chainalysis tells you that you have tainted sats and that you're a criminal now because you didnt take their 2.5BTC/y subscription to screen all your supposedly-fungible BTC inbound txs.

I'm not saying you're wrong, I just think that the fungibility warning precisely means that they don't know, and if USAID was funding something that was not authorized by congress then they can just fix that: hold those that authorized these payments responsible. Let em serve jailtime. Audit authorized recipients that the money was spent as contracted. If not, sue them for fraud.