 
         case _: break
         }
-
-        return stories
     }
 
     func fetchComments(story: Story, completion: (data: [Comment]) -> Void) {

        }

        dispatch_group_notify(fetchGroup, dispatch_get_global_queue(QOS_CLASS_USER_INITIATED, 0)) {
            completion(data: self.sortStories(stories, source: source))
        }
    }


        }
    }

    func sortStories(inout stories: [Story], source: HackerNewsAPI) {
        switch source {

        case .NewStories:
