Hazmat crews and emergency response teams deployed to the Pentagon on Thursday morning over what the Defense Department called “an air quality issue. ”Pentagon spokesman Sean Parnell confirmed that “sophisticated systems” had “detected an air quality issue necessitating precautionary measures unt...
Source: [NBC News](https://www.nbcnews.com/news/us-news/hazmat-crews-respond-hazardous-materials-incident-pentagon-rcna349630)