This column probably ought to carry a warning label: "The following piece of writing contains an apples-and-oranges comparison that may be hazardous to your intellectual health." I'm going to compare two fights among senior churchmen, but the purpose is not to suggest they're identical. Rather, it's to understand what makes them different.

The first term of comparison is the tension between Archbishop Jose Gomez of Los Angeles and his predecessor, Cardinal Roger Mahony. On Jan. 31, Gomez announced that Mahony would "no longer have any administrative or public duties" because of failures to protect children from abuse, documented in files released by the archdiocese. That triggered an open letter to Gomez from Mahony acknowledging mistakes, but insisting he went on to...