Going Beyond The Bounds--questions Of Anti-semitism Continued

Is it permissible to speak of such a divergence in public discussions? If not, why not? But, if so, what have Mearsheimer and Walt done to violate the canons of decency approved by Herf? What is their offense beyond asking that discussions be more frequent, candid, and permissible without incurring the charge that by recommending such discussions at all, the recommender proves his anti-Semitism?