Scott Smith, an independent testing expert and CEO of U.S. BioSolutions, joins "NewsNation Now" to discuss the National Transportation Safety Board's hearing Tuesday on the cause of the 2023 East Palestine, Ohio, train derailment. #Ohio #Train #Derailment "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