Parents of a 2012 Aurora, Colorado shooting victim travel the country to help others impacted by mass shootings; then, Siberia's Pleistocene Park: Bringing back pieces of the Ice Age to combat climate change; then, German-style program at a Connecticut maximum security prison emphasizes rehab for inmates.

Starring:

Byron Pitts, Morley Safer, Steve Kroft, Lesley Stahl, Andrew Rooney, Scott Pelley, Ed Bradley, Bob Simon, Mike Wallace, Lara Logan, Anderson Cooper, Bill Whitaker, Norah O'Donnell, L. Jon Wertheim, Sharyn Alfonsi, John Dickerson

Genre:

Documentary