无视图控制器?

我使用的是ASP.NETMVC,我有一个模型类,它表示与一个实体关联但由另一个实体创建的数据集。例如,给定以下ViewModels,

public class User { 
   public int UserId { get; set; }
   public IEnumerable<NewsComment> Comments { get; set; }
}

public class News {
   public int NewsId { get; set; }
   public string News { get; set; }
   public IEnumerable<NewsComment> Comments { get; set; } 
}

public class NewsComment {
   public int NewsCommentId { get; set; }
   public string Comment { get; set; }
   public int NewsId { get; set; }
   public int UserId { get; set; }
}

public class NewsController : Controller
{
   public ActionResult Index()
   {
        return View(ListAllNews());
   }

   public ActionResult Detail(int newsId)
   {
       return View(GetNewsItem(newsId));
   }
}

public class NewsCommentController : Controller
{
   [AcceptVerbs(HttpVerbs.Post)]
   public void Create()
   {
      int newsId = Request["news_id"];
      int userId = Request["user_id"];
      string comment = Request["comment"];
      SaveNewsComment(newsId, userId, comment);
      return RedirectToAction("Detail","News",new { newsId = newsId });
   }
}

如果我只在News/Detail视图或User/Detail视图上显示评论,并且评论发布在News/Detail视图上,那么

2. NewsCommentController是否应该只有一个创建操作,该操作在方法完成后从调用并重定向回NewsController/Detail操作?
3. 我应该用吗 RenderAction 从NewsCommentController中列出我的评论?