Who’s responsible for helping those affected by radioactive contamination left behind from World War II and what are they doing about it? Leftover waste from uranium refinement has seeped into areas along Clearwater Creek in St. Louis County, leading to an increased risk of cancer and other health problems. We take a look at what’s being done to clean up the area and help those who have suffered in the third part of our interview with Linda Morice about her new book, “Nuked: Echoes of the Hiroshima Bomb in St. Louis.”