Well, that WOULD make it easier for Big Brother to get ahold of us when he needs us.
And the government-issued radios could have convenient GPS tarcking systems in them, as well as transmitters (which, of course, NEVER turn off).
Most people already carry a similar device: a cell phone which tracks their every movement, and they pay for it voluntarily and carry them always without complaint.
There is now a push for reverse-911 systems where instead of you calling the authorities they robo-call you to play a recording of something. I'm sure every child custody dispute will result in an Amber alert phone call to everyone in town soon.