If it were notices sent to registrars, yes (talking .com, for instance). A US based registrar is bound by US law. A UK based registrar is not. In these cases

If it were notices sent to registrars, yes (talking .com, for instance). A US based registrar is bound by US law. A UK based registrar is not. In these cases they are going after the registry itself (Verisign) which is completely under US law and the individual registrars have no involvement whatsoever.