Increasingly, dogs are being introduced in prisons to help inmates care for and train another living being. Larry Carson of “Pen Pals of San Quentin” explains how inmates who work in the fire department there socialize and train rescue dogs to prepare them for adoption. Sophie O’Shaunessy describes how inmates from seven east coast correctional facilities train puppies to become service dogs through the nonprofit organization Puppies Behind Bars. Many of these dogs are being placed with physically and psychologically disabled veterans from the wars in Iraq and Afghanistan.