>You just need a network of cypherpunks with radio scanners, direction >finders and GPSs, a way to recognize different cops by their radio >transmissions, and a way to communicate the cop location vector data >amongst the cypherpunk participants. Recipients need only do the >triangulation using the vectors to locate the cops. Why bother with "different" cops? It would seem to me that you would want to know the location of *any* cop currently broadcasting, or had broadcasted in the last ten minutes. It would seem to me one could set up three (or more) RDF locations linked via a network of sufficiently low latency, and just plot transmission points on a map. Fade the points based on time since transmission, and you get either a fixed dot for transmitters that aren't moving, or a slowly fading streak for those that are. -- A quote from Petro's Archives: ********************************************** If the courts started interpreting the Second Amendment the way they interpret the First, we'd have a right to bear nuclear arms by now.--Ann Coulter