I would have to think the same as Birdie. They would have a special "login" area for news reporters, could be in anything from PHP to ASP or even a desktop based program in visual basic, c, the options are unlimited. It would then probley either do a quick "spell check" and then im assuming they would have senior editors to overlook again and chose if its worthy of views.
If you check articles right away you'll often see many errors then as you keep refreshing they start dissapearing, sometimes they change the titles of them too