I suppose the government can. Now, go ahead and make your case for a criminal enterprise. Not that a MAGAT can recognize one anyway.The US government can ban wire transfers to a foreign nation if so desired. The US can also restrict how and who can send a wire transfer. For example, if the US government were to ban illegals from making wire transfers, that'd stop a lot of the problem. That could be done on the basis that an illegal making one is participating in an ongoing criminal enterprise.