Halfway Home, MLK/FBI, Nutrition Security

The prison system ruptures families and relationships in a way that makes it harder for offenders to rehabilitate. Newly declassified documents show how the FBI tried to discredit Martin Luther King, Jr. at the time of his death. Food stamps don’t make people healthier. Also, on today’s show: unlocking letterlocking; the remarkable staying power of Lord of the Rings; how crabs can protect endangered reefs. (AP Photo/File)