Ah, that is because you are in the heading News, but you have not selected a sub-heading. There is nothing under going on in News. First you select the tab/category News, and then you select the tab/category/subheading World News. I just clicked and the most recent world news thread is one minute since the last reply.
But, if I am in the all categories place, clicking on “Latest” doesn’t show any world news threads.