Topic: Perfluorocarbon

The Department of Homeland Security conducted a simulated terror attack in the Boston subway system, releasing sulfur hexafluoride and perfluorocarbons to study gas propagation. The hosts highlight that sulfur hexafluoride is a potent greenhouse gas and perfluorocarbons can cause flu-like symptoms. They question the safety of exposing the public to these chemicals under the guise of security research.