The author of this book was on NPR/Fresh Air in August. It was a great listen/read if you are interested in the subject.
http://www.npr.org/2016/08/22/490932307/aging-and-unstable-t...
I heard it a couple of days after a weather related power cut and ended up in the rabbit hole of the risk from cyber warfare/terrorism and solar flares. I'm not sure I would recommend that rabbit hole if you have any concerns about the reliance of society on technology and just in time shipping!