To get to this college classroom, you have to walk past the barbed wire, between a line of armed guards, and through the heavy metal bars. Only then do you arrive at the circle of chairs.
When class starts, half the chairs are filled with so-called "inside students," men and women serving time behind bars. The other half of the seats are occupied by "outside students" — basically, traditional college students.
This coming year, more than 100 universities and colleges around the world will offer Inside-Out classes.