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BUNKERS
-- (Paracelsus@Ob.Au), May 12, 2001
Deep underground structures are the most costly and present the most operational problems. Deep-underground facilities typically can be several hundred or thousand feet below the surface. Deep-underground facilities must have survivable entrances, exits, communication links, etc., which will be shallow-buried or aboveground facilities.40 feet just won't cut the mustard.
-- (Paracelsus@Pb.Au), May 12, 2001.