Hi my friend,
US does not has an issue with this...it is allowed, but FSM being on the web and having users all over the world, I´m not sure. This is the reason you never see a scale model from any brand portraying the swastika (that I know of), just that they do not get sued if a model is sold in a European country or somewhere else where is forbidden.
Has anyone seen a swastika in the reader galleries?