Scott Smith, an independent scientist who has conducted testing in East Palestine, Ohio, following a train derailment and controlled burn of tanker cars containing toxic chemicals, explains why residents are worried about continued risks from contamination. #EastPalestine #trainderailment #NorfolkSouthern "NewsNation Now" is a no fluff, no filler newscast hosted by Nichole Berlie and Connell McShane featuring up-to-the-minute news drawing from a network of journalists across the U.S. Weekdays starting at 1p/12C. NewsNation is your source for fact-based, unbiased news for all America. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij