The United Nations wants to criminalize religious heresy, provided that those making the claim are Islamists.Later this month, the United Nations General Assembly will vote on the nonbinding Defamation of Religions Resolution, which would give international sanction to the type of religious persecution commonplace in Muslim-majority countries. Superficially, the resolution contains feel-good human rights language routinely churned out by the U.N. The intent of this resolution, however, is to give sanction to repressive mechanisms that primarily Muslim countries use to stifle critiques of their state-sanctioned sects. This lends international legitimacy to criminal penalties against people who exercise their freedom...