Denemark's photo shows Abramowski and his children walking away from the jail, with the barbed wire in the background. That gives this image -- our photo of the week -- a powerful sense of place.

In the U.K., where jail isn't just for grown-ups, early intervention is critical. "You can be arrested at 10 years of age, so they deserve to know about their responsibilities.

Mobile prison cells show students what life behind bars is like 01:27. Students at an elementary school in England weren't sure what to think when a prison on wheels recently arrived on their campus.