Wireless World: Sensors detect icy bridges

A suspension bridge is perilously close to collapse, but secret federal agents learn about the pending disaster on their Palm Pilots and dash to the site and are able to stop the catastrophe just in time. The real hero here, though? Miniature wireless sensors. Sensors embedded on bridges are helping authorities tell when there is a problem with the infrastructure; wireless nodes on fault lines can help forecast the next earthquake; and other technology can help cell phones communicate without cell towers over a distance, experts tell United Press International's Wireless World. By Gene Koprowski