Biggest Threats to U.S. Are Nuclear War With Russia, Biological Attack and Climate Change, Former Spy Chief Says -- Newsweek

"The thing that scares me the most in the long term is the state of our politics here and...it's gotten worse," Michael Morell said. ....
http://www.newsweek.com/biggest-threats-us-nuclear-war-russia-biological-climate-change-694938