There's a popular conspiracy theory that the City of London (yes London in the UK) secretly runs the world of finance and that all tax havens are in cooperation with this sovereign state. They've provided NO EVIDENCE. They even go as far to claim it has its own police force and laws and that the popular scapegoat they use, the Freemasons, headquarters is based there.
Now, I can't stand conspiracy theorists, they constantly try and attack our land of the free. But anyone in their right mind can dismiss this nonsense straight away until they provide proof.