From John Allen: A Rome conference in late April hinted that the Vatican may be moving towards a more restrictive posture on annulments, the procedure in church law for declaring a marriage null and void, which some critics refer to as “Catholic divorce.”If so, the fallout could have special significance for the United States, home to just 6 percent of the world’s Catholic population but accounting for roughly two-thirds of the 60,000 annulments issued by church courts each year.The April 26-27 Rome conference focused on canon 1095 of the Code of Canon Law, which allows a marriage to be declared...