A Roman “street artist” is suing the Vatican for using her work without permission. Alessia Babrow says that she was shocked to find that a poster she had created—depicting Jesus with a heart superimposed on his chest—had become the Vatican’s Easter stamp. She reports that she filed suit after failing to negotiate an agreement with the Vatican. The cases poses interesting legal questions, since the original work was not marketed commercially but posted, graffiti-style, on a bridge.