There's one coming this year. Can't necessarily claim Orwell's talent, but having taught with a professor who made this very point a couple of years back, I've been working on a sociopolitical novel on this specific topic (with bells on) since then on and off and now it's getting into shape. The autumn's events (Brand v newsnight, NSA) have for me been very encouraging in demonstrating that I've not just been barking up my own tree.