Restoration will halve painting's value
                                
                                
                                    (Newser) -
                                    It's painstaking work, but conservators can indeed repair the Picasso torn by a clumsy museum patron. Once restored, however, the painting will likely lose about half its $130 million value, reports the  New York Post . A few different repair options are available, notes the Explainer column in  Slate . With the...