In the Midwestern state of Wisconsin there's a new game in town. It's called Geocaching. The object of this game is to find an object - and perhaps replace it with another. This report is narrated by Crystal Park. People around the world are taking part in an ongoing high tech scavenger hunt. It's a new thing called Geocaching. There are Internet sites that list the latitude and longitude coordinates of where things are stashed. People with Global Positioning Satellite, or GPS, units use that information to try to hunt down what they're looking for. John Carvin GPS units are...