Virginia emergency crews deployed to the Pentagon on Thursday morning for what authorities described as a “hazardous materials incident. ”Pentagon spokesman Sean Parnell confirmed that “sophisticated systems” had “detected an air quality issue necessitating precautionary measures until we determi...
Source: [NBC News](https://www.nbcnews.com/news/us-news/hazmat-crews-respond-hazardous-materials-incident-pentagon-rcna349630)