The head of the National Transportation Safety Board said that Norfolk Southern repeatedly tried to interfere with the agency’s investigation into the East Palestine derailment and shape its conclusions about the flawed decision to blow open five tank cars and burn the vinyl chloride inside. NTSB Chair Jennifer Homendy joins NewsNation's "Elizabeth Vargas Reports" to discuss this further. #NTSB #EastPalestine #trainderailment Anchor Elizabeth Vargas delivers the biggest stories, without bias or opinion. Watch "Elizabeth Vargas Reports" every weeknight at 6p/5C on NewsNation. #VargasReports 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