What Is the Economic Logik in Decommissioning Nuclear Bunkers?

The british began shifting all of the civil defense preparations into the so called care and maintenance category as early as 19 69. They really couldn't see the logic in making large scale investment in bunkers. The united states too also abandons the very active phase of of civil defense in the 19 seventies. There's a legacy program that runs on, with military selling off existing military grade bunkers for 250 to 300 thousand dollars a pop.