A somewhat scary story of how much modern society relies on GPS in everyday life, and the havoc it can cause if it's jammed.
http://www.newscientist.com/article/dn20202-gps-chaos-how-a-30-box-can-jam-your-life.html?full=true
http://www.newscientist.com/article/dn20202-gps-chaos-how-a-30-box-can-jam-your-life.html?full=true
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