Controversy has erupted over Notre Dame's invitation to President Barack Obama to speak at its May commencement ceremony. The president will address the university and receive an honorary doctorate in law. Bishop John J. D'Arcy of the Fort Wayne-South Bend diocese has decided not to attend the commencement, explaining, "My decision is not an attack on anyone, but is in defense of the truth about human life." Bishop D'Arcy's position is reflective of the outrage of many in the Catholic community. Their angst is understandable since Mr. Obama has pursued a strong anti-life agenda both before and after assuming the...