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."
I was under the impression that the US had spent billions of dollars seeding the north atlantic ocean with passive buoys and magnetic anomaly detectors (MAD) as a net to detect and triangulate soviet subs. This is cold war stuff that could perfectly be reused to counter new threats from terrorism, since it's been there and working for decades and, presumably, still in operation. So why deploy new ones?