The National Transportation Safety Board gave a timeline of Baltimore's Francis Scott Key bridge collapse, saying the full investigation could take up to two years. NewsNation’s Alex Caprariello joins “Elizabeth Vargas Reports" from Baltimore with the latest details. #Baltimore #Key #Bridge #Collapse 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