 The ultimate decision for Gorleben according to the former Lower Saxony Prime Minister Ernst Albrecht was mainly for structural reasons for the economic development of the zone.1.5 billion Euro's of research has been conducted in the period 1979-2000 at Gorleben.On hindsight it became clear that the original and methodologically correct approach, to investigate three potentially suitable salt domes in parallel and a comparative assessment of the results were abandoned by the choice for Gorleben.