 The PJP holds that all coercive actions or laws require justification for each member of the public. But critics ask whether this treatment applies to the PJP itself. If so, then given that reasonable people disagree about the PJP, the PJP is self-refuting. But suppose the PJP needs no public justification; if so, its defenders make an arbitrary exception for their moral principle. (Wall 2002; Christiano 2010, 206–213; Estlund 2008; Wall 2013; Enoch 2013, 170–173).