We often talk about how art makes a difference in the quality of our lives. Imagine if that life was playing out in a prison. The Prison Creative Arts Project at the University of Michigan began exploring that reality nearly three decades ago, and, as WEMU’s David Fair and Deb Polich from the Arts Alliance found out, it is changing lives. They speak to two of the project's instructors, Vanessa Mayesky and Cozine Welch, Jr., in this week's "creative:impact."