How Vulnerable Is G.P.S.? | The New Yorker

In the cool, dark hours after midnight on June 20, 2012, Todd Humphreys made the final preparations for his attack on the Global Positioning System. He stood alone in the middle of White Sands Missile Range, in southern New Mexico, sixty miles north of Juárez.

How Vulnerable Is G.P.S.? | The New Yorker