 Again, public reason liberals add information to the belief-value set of ordinary citizens. (And, indeed, remove misinformation.) They thereby avoid holding public justification captive to ignorance. Rawls, Gauthier, and Habermas all pursue this strategy. Their models assume that idealized agents have all (and only) the facts that determine what reasons they have. Public reason liberals remove beliefs and desires that stop individuals from adopting an impartial perspective. They add such general and specific information necessary for the agent to reason well about the issues before her. Public reason liberals disagree about what sets of information interfere with impartiality. But all theorists subtract misinformation and biasing information.