You are correct. I indeed remembered that not even the ambassador was summoned, but according to https://www.dw.com/de/nsa-sp%C3%A4hangriff-us-botschafter-einbe

You are correct. I indeed remembered that not even the ambassador was summoned, but according to https://www.dw.com/de/nsa-sp%C3%A4hangriff-us-botschafter-einbestellt/a-17180796 https://www.dw.com/de/nsa-sp%C3%A4hangriff-us-botschafter-ei... at least that did happen.