National Environment How Natural Disasters Make Major Cities Vulnerable To National Security Threats 5:45pm September 10, 2017 News U.S. Around the Nation National Security Environment Share URL copied to clipboard! Play Pause There was an error loading the media player. Copyright 2017 NPR. To see more, visit http://www.npr.org/. 300x250 Ad More All Things Considered National The religious context of the Minnesota shootings Environment Health & Safety Radiolab celebrates 'Jaws' anniversary 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate