Hurricane Laura Strengthens To Category 4 | NBC Nightly News

Laura rapidly strengthened into a Category 4 storm, forcing more than half a million people to face mandatory evacuations. » Subscribe to NBC News: » Watch more NBC video: NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features , , , Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of