Russia had proposed a treaty with the United States asking for the mutual extradition of criminals—however, the U.S. never agreed to the treaty, and because the U.S. had never extradited any Russian fugitives who had taken asylum Per mezzo di the United States, there was no established precedent to follow. https://letsbookmarkit.com/story18375536/la-guida-pi%C3%B9-grande-per-paises-sin-extradicion