Today, the scaffolding outside bustles with workers. Sundays draw more than 300 worshipers, many of them families with small children. And where the prevailing language heard in the pews was once English, it is now overwhelmingly Spanish, with a Mexican accent.      

As the Roman Catholic Church in the United States struggles with an exodus of American-born faithful, its ranks have been replenished by recent Latino immigrants — most of them Mexicans, who have brought an intense faith and a youthful energy. That buoying effect is especially evident in New York City, where the Mexican population has grown more than 25-fold since 1980...more

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