NewScientist: GPS Chaos: How a $30 Box can Jam Your Life, March 2011

“Signals from GPS satellites now help you to call your mother, power your home, and even land your planeā€”but a cheap plastic box can jam it all.”

Continue reading the NewScientist article, which features a discussion with Dr. Humphreys on GPS spoofing in the “Faking It” section.