DICKINSON — Last week, Pope Leo XIV took the extraordinary step of excommunicating not only the leadership and clergy affiliated with the ultraconservative Catholic splinter society called the Society of Saint Pius X (SSPX), but all of its lay followers as well, after SSPX went ahead with the consecration of four new bishops, including one who was born in North Dakota, despite repeated warnings from the Vatican that the move would be a "sin of extreme gravity." Among those subject to the...