Political comedy is everywhere on TV, but contributor Peter Brown is concerned: the laughter on late-night shows seems to be giving way to the earnest partisan cheering that comedian Seth Meyers calls "clapter". Are our current politicians becoming satire-proof? Or has satire always merely preached to the choir? In search of answers Peter looks to the classic satire of Juvenal, Swift and the Arab-speaking world, as well as prominent current practitioners including Armando Iannucci, creator of "Veep" and "The Death of Stalin".