We worried a lot about the example in world politics the Bush administration set. We don't really want our citizens tortured and renditioned and whatever. Certainly not by other countries.
Apparently, what we've done to Bush in the last few months has served as a bit of a lesson overseas (and we haven't even prosecuted him yet):
"According to Mr Levitte, the Russian seemed unconcerned by international reaction. “I am going to hang Saakashvili by the balls,” Mr Putin declared.
Mr Sarkozy thought he had misheard. “Hang him?” — he asked. “Why not?” Mr Putin replied. “The Americans hanged Saddam Hussein.”
Mr Sarkozy, using the familiar tu, tried to reason with him: “Yes but do you want to end up like [President] Bush?” Mr Putin was briefly lost for words, then said: “Ah — you have scored a point there.” "
Not _enough_ of a lesson -- but definitely in the right direction.