I don't see how the Pope can discipline any bishop or anyone superior who is in receipt of an extra judicial denunciation of child sexual abuse by a cleric for covering it up in a jurisdiction that has no applicable civil reporting law. The bishop would be obeying the pontifical secret by not reporting it to the police. Canon law is a legal system and those subject to it can only be punished for disobeying the law, not for obeying it. The responsibility for this mess lies with Pope Francis himself. He can require mandatory reporting with the stroke of a pen. He was asked to do so by two Committees of the United Nations in 2014 and he refused with the casuistic excuse that it would interfere with the sovereignty of independent nations. It would only interfere with such sovereignty if a country prohibited reporting child sex abuse by clergy to the police. No such country exists.