Eighteen years after the 9/11 attacks many first responders continue to live with PTSD. Now a pilot study from Stony Brook University suggests they could face another mental health challenge...dementia. We examine that study and share your memories of September 11th, with guests: Dawn Kirchner, spouse of a first responder with severe cognitive problems post-9/11 Sean Clouston, Ph.D., associate professor, Family, Population and Preventive Medicine, Stony Brook University Gary Rose, Ph.D.,