He was the victim of an illegal eavesdropping operation by the BfV (the German domestic intelligence service), because he was falsely suspected of passing on secret information to people sympathizing with terrorism, notably the Red Army Faction.
Traube started work at the German AEG, where he quickly rose to become director of the department for nuclear power.
Traube returned to Germany and became head of Interatom, a component company of the Kraftwerk Union, which was part of the Siemens conglomerate.
[2] Traube was originally a proponent of nuclear power, but the report of the Club of Rome, The Limits to Growth, in 1972 made him slowly change his view.
[1] This illegal operation was uncovered in 1977 by the newspaper Der Spiegel and led to the dismissal of the then minister of the interior Werner Maihofer one year later.