The Global Positioning System guides our ships at sea. It’s the centerpiece of the new next-gen air traffic control system. It even timestamps the millions of financial transactions made across the world each and every day.
And it's at extreme risk from criminals, terrorist organizations and rogue states -- and even someone with a rudimentary jammer that can be bought on the Internet for 50 bucks, said Todd Humphreys, an expert on GPS with the University of Texas.
“If you’re a rogue nation, or a terrorist network and you’d like to cause some large scale damage -- perhaps not an explosion but more an economic attack against the United States -- this is the kind of area that you might see as a soft spot,” he told Fox News.