Two former top-level federal health officials, Robert Redfield and Raj Panjabi, tell “Elizabeth Vargas Reports” that Russia must be transparent about the death of a lab worker who may have been infected with a form of pneumonic plague. “This is not a very transmissible agent in its natural form — now, it can be altered,” Redfield says. #Health #Plague #Russia Anchor Elizabeth Vargas delivers the biggest stories, without bias or opinion. Watch "Elizabeth Vargas Reports" every weeknight at 7p/6C on NewsNation. #VargasReports NewsNation is your source for fact-based, unbiased news for all Americans. 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