They'd still need a collaborative cleaner in between... Such cleaners are easily built in the model you mention. (Out of country, with hands in both clean/dirty

They'd still need a collaborative cleaner in between... Such cleaners are easily built in the model you mention. (Out of country, with hands in both clean/dirty channels.) Not really, the government could just say any out of country transfer needs to be done through a registered service. So if your aunt wants to give you money, has to go through "Bit Western Union" or whatever. Shame, because then its destroying almost free transfers as well. Essentially nothing is gained, but the government can easily track everything.