9/11 WORKERS’ HEALTH: Five years after 9/11, many rescue workers and volunteers at ground zero suffer extensive health problems related to their exposure to the dust and debris of the Twin Towers. Rachel Gotbaum brings us their stories from New York City. Also, a comprehensive study of illnesses affecting rescue workers at ground zero reveal that dust and other toxins have caused chronic health problems, and even death. Host Bruce Gellerman speaks with Dr. Philip Landrigan who co-authored the study and has been screening rescue workers since 9/11.