Gustav Courbet's L'Origine du Monde (1866). Photo: Musée d'Orsay, Paris Facebook’s policy regarding the depiction of nudity on its website, which has been criticised for being too vague, was clarified last month. The company’s latest “community standards” indicate that it now allows “photographs of paintings, sculptures and other art that depicts nude figures” to be posted on its site. But Faceboo