Can one be saved apart from or outside the Church?

It would be an understatement to say that the teaching of the Church that extra Ecclesia nulla salus is controversial. Especially in the 19th and 20th centuries, whether or not non-Catholics could be saved was hotly debated. To address this question, Aaron Debusschere and Fr. Ambrose Dobrozsi dive into the nature of salvation in the history of the Church's theology, looking especially to St. Augustine. Salvation is radically communal, consisting in membership in the Body of Christ which is the Church.