/// <summary>
        /// Adds a jurisdiction to the system, only if it does not exist.
        /// </summary>
        private static void AddInitialNewsletter(this IDynamicsClient context, ViewModels.Newsletter initialNewsletter)
        {
            Newsletter newsletter = context.GetNewsletterBySlug(initialNewsletter.slug);

            if (newsletter != null)
            {
                return;
            }

            newsletter = new Newsletter
                         (
                initialNewsletter.slug,
                initialNewsletter.title,
                initialNewsletter.description
                         );

            context.AddNewsletter(newsletter);
        }