I'm not sure what the underlying legal theory is in defining terrorist groups, but maybe ex post facto applies here. If the defining of the group as terrorist i

I'm not sure what the underlying legal theory is in defining terrorist groups, but maybe ex post facto applies here. If the defining of the group as terrorist is done by passing of a law then this is pretty open and shut. If it's done by executive order then I'm not sure. It might go to the supreme court.