NBC News’ Tom Llamas reports for the series “The Cost of Denial” about the emerging health crisis 25 years after the attacks of 9/11, the first responders now being diagnosed with dementia. Researchers believe the condition is connected to exposure to toxins at Ground Zero, but dementia is not o...
Source: [NBC News](https://www.nbcnews.com/nightly-news/video/9-11-first-responders-push-for-coverage-of-dementia-269673029893)