And quite a mistake too. That said, it sounds like at least a dozen others I have heard of.
Condoleeza's message to the German people?
Oops! We kidnapped one of you, took them away from their wife and children -- who thought they had died -- without notice or due process, flew them to Afghanistan for five months, and abused them physically, sexually, and psychologically. Sorry! We'll get it right next time though, because nothing promotes accountability like holding people incommunicado in prisons so secret, the public doesn't even know they exist.
And to think that Frau Merkel accepted that answer...
Bet a whole lot of Germans wish they had Schroeder back right about now.