America’s favourite, most-dysfunctional family is at it again. Levi Johnston, father of former Alaska governor Sarah Palin’s grandchild, plans to pose nude for “Playgirl” magazine, proving there is probably some news you didn’t really need to know. Johnston is working hard on his six-pack and pecs with a local body builder. Publication of the photographs could be a source of embarrassment for Palin, often mentioned as a possible 2012 presidential candidate, or not. Her memoir, "Going Rogue," comes out on 17 November and the “Playgirl” spread could help or hurt sales of her book, depending on its tastefulness.