Recently Bishop Eusebio Elizondo, chairman of the United States Conference of Catholic Bishops Committee on Migration, applauded a federal district court that found the Obama administration excessively strict in its enforcement of immigration law. It's not easy getting to the left of Obama on illegal immigration, but the Conference of Catholic Bishops is up to the task. The bishops believe, no doubt, that they have prudential and humanitarian reasons for encouraging illegal immigration. Nevertheless, the prudence and humanity of the bishops would be easier to credit if they would admit to their conflict of interest. Without Catholic immigration, which is...