One of the worst is that it allows corporations to seek restitution in an international tribunal, not only for unjust expropriation, but also for alleged diminution of their potential profits as a result of regulation. This is not a theoretical problem. Philip Morris has already tried this tactic against Uruguay, claiming that its antismoking regulations, which have won accolades from the World Health Organization, unfairly hurt profits, violating a bilateral trade treaty between Switzerland and Uruguay.