Pope Leo XIV has affirmed that priests must be celibate. And he has insisted that bishops take "firm and decisive" action to deal with sex abusers. Leo met Wednesday in St. Peter's Basilica with about 400 bishops and cardinals from 38 countries attending this week's special Holy Year celebrations for clergy. He gave them marching orders on what bishops must do to lead their flocks. It's an issue the former Cardinal Robert Prevost would have long pondered given his role as the prefect of the Vatican Dicastery for Bishops. In that job from 2023 until his election in May, Prevost vetted bishop nominations for Pope Francis, identifying the type of leader who would further Francis' view of a church where all are welcome and dialogue is the decisive form of governance.