Unless there is a law that says that the fundamental right to privacy is protected then we're bound to repeat this ordeal every couple of years.
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No one shall be subjected to arbitrary interference with their privacy, family, home or correspondence, nor to attacks upon his honor and reputation. Everyone has the right to the protection of the law against such interference or attacks
The spirit of the laws is all fine and good but combing through them it's not uncommon to find these little loopholes.
Politicians (and probably family) plus Military comms are not intercepted, and i would make a bet that "protected persons" like the CEO of Rheinstahl would also not intercepted (states secrets blablabla).