We think our feet are always on solid ground, but in Florida it's more like Swiss cheese. Dick speaks to Casey McKinlay, who, along with his diving partner Jarrod Jablonski, pulled off a 21-hour dive through underwater caves that connect sinkholes.
Right now, all over the world, projects are underway to store seeds. Biodiversity has plummeted in the last 50 years, and scientists fear climate change will kill varieties of apples, yams and many fruits and vegetables. Dick talks with seed collectors.
Dick speaks with folklorist Bill Ferris about the "single strand" instruments—like a single strand of wire fixed to the side of a wooden shack and played with a bottle—that led the way to the blues that we know today.
Economic decline has left Detroit with many abandoned buildings. Jim Griffioen lives in the city and has been documenting the destruction of some of those buildings by "scrappers," people who strip abandoned buildings of valuable metals.