“In Paradise Square, Baghdad, tearing down a giant bronze Saddam is seen as moving, heroic and symbolic. Bad art about bad people deserves all the abuse it gets, we might argue, but where do the lines of acceptability lie when an artist wilfully wrecks another artist’s work? Jake and Dinos Chapman are in trouble again for defacing a complete set of Goya’s 80 Disasters of War etchings. Goya worked on the series for a decade from 1810 and never saw it printed in his lifetime.” But strangely, the defacement is moving…