A study by the World Health Organization says that long-term exposure to radiation, even at low levels, can dramatically increase the risk of dying from cancer. Following the initial discovery of a nuclear-waste site near a landfill fire in St. Louis, 24 additional contaminated sites have been identified across ten states in the northeastern US. CBS News 2015 Oct 22 (Story)
https://www.youtube.com/watch?v=dVCHXtAkJ6Q