Razib Khan does some number crunching:

[T]he proportion of Catholics who oppose abortion is strongly correlated with the proportion of the other major religious group who oppose abortion. All things equal there was an international tendency for Catholics to be somewhat more anti-abortion than non-Catholics, but a far better predictor of attitudes was not religion but nationality. In other words Catholic Germans resembled Protestant Germans while Catholic Chileans resembled Protestant Chileans.

We want to hear what you think about this article. Submit a letter to the editor or write to letters@theatlantic.com.