Stephen Porter, who taught inside Poe Hall at N.C. State University for years, joined Jeff Hamlin on the WPTF Afternoon News to discuss the latest developments in the ongoing investigation into potential cancer cases linked to the building. The Centers for Disease Control and Prevention (CDC) is currently investigating whether exposure to PCBs in Poe Hall might be connected to an excess of cancer diagnoses among its employees. This new phase of the inquiry involves cross-referencing worker data with the state’s cancer r