according to the Navy... Navy to discontinue cold war relic Posted: Monday, September 27, 2004 By The Associated Press
With terrorism the new global threat, a network of radio antennas that let the Navy maintain secure communications with submarines at sea has become yet another Cold War relic.
On Thursday, the Navy will shut off its extremely low frequency radio transmitters in northern Wisconsin and Michigan, saying the 15-year-old system, first proposed in the 1960s, is outdated and no longer needed.