Imagine if every person were implanted with a GPS device at birth. Imagine we develop the technology to keep a retrevable data base that can pinpoint the exact location of an individual at any given time during their lifetime. Imagine that this data could be cross referenced to reveal the identities of all other individuals at the same location at that perticular time. Actually we aren't that far away from having the ability to do this now, but imagine if everyone were equipped with this device.
Serial crime would become obsolete. By cross referencing the location of the victim we'd know who was present at the crime scene and, even more importantly, where they are right now. Police work would be much easier if an alibi could be checked on a squad car computer by referencing a suspect's previous locations. We could solve previously hard to solve crimes like hit and run, arson and burgulary simply by cross referencing the location of a crime with those that have been there.
We aren't far away from having the potential to do this. Based upon the general good to society a concept like mandatory GPS implants would provide does this seem like a path we should pursue? I'm undecided myself, but what if we used this technology to solve crimes and civil disputes by requiring the implantation of every American? Good idea or bad idea?