It's a good thing we have politically incorrect conservative stalwarts like Catholic League president William Donohue to protect us from the politically correct menace. Otherwise, the politically correct whiners, appointing themselves to be the thought police, would censor art that violates their supposed right not to be offended and would even call such art "hate speech." On second thought, given the recent flap over an exhibit at the National Portrait Gallery, maybe he isn't the best example.
Also, you'd think that the guardians of conservative political correctness (not that there's any such thing, of course) would have learned by now not to give free publicity to what they oppose. They have given huge boosts to the popularity of works by Robert Mapplethorpe and Chris Ofili, among others.
Finally, the Transformer Gallery has announced that it will show the offending piece. To me this indicates that preserving freedom of expression involves less government management of the arts, not more.