Well maybe now cartels will need to launch their own satellites, and make their own hardware that computes the time it takes a signal to propagate. Wouldn't mak

Well maybe now cartels will need to launch their own satellites, and make their own hardware that computes the time it takes a signal to propagate. Wouldn't make it impossible to intercept, but would raise the costs more than calling up Google or the GPS provider and asking them to hand over the data.