Ten years ago there were no faith-based units in prisons outside South America. Today, they are spreading all over the world, including the United States, Europe and the Commonwealth. My Brother's Keeper is the first major study of a global phenomenon.

Exploring the roots of faith-based units in South America, it explains why the Prison Service of England and Wales set up the first Christian-based unit in the western world in 1997 - and its rapid expansion. It also explains how, at exactly the same time, the United States introduced Christian-based units - and why they...