Revisions in theology start inconspicuously enoughusually as footnote-laden articles in grey, learned journals with modest circulations. Future church historians may well date a profound change in Roman Catholic thinking on marriage from the current issue of a scholarly Belgian periodical called Ephemerides Theologicae Lovanienses, There, the Rev. Louis Janssens, 56, a respected professor of moral theology at the University of Louvain, cautiously endorsed oral contraceptive pills as a legitimate means of family limitation for Catholic couples.
Catholic moralists in the U.S. reacted to the article as if Canon Janssens had nailed...