Coast Guard to Track Ships Using Buoys

nomrniceguy writes "The Coast Guard plans to use dozens of buoys off the U.S. coast to extend the reach of a security system that monitors large vessels heading in and out of ports. The buoys are intended to extend the network's reach -- the Guard now receives the automated data only when a vessel is within about 25 miles of a port. The floating transmitters will relay the information from hundreds of miles off shore, from the middle of Lake Superior and off coastlines from Alaska to Maine."