Passing for what you are not--whether it is mulattos passing as white, Jews passing as Christian, or drag queens passing as women--can be a method of protection or self-defense. But it can also be a uniquely pleasurable experience, one that trades on the erotics of secrecy and revelation. It is precisely passing's radical playfulness, the way it asks us to reconsider our assumptions and forces our most cherished fantasies of identity to self-destruct,...