The thing people need to realize is that every country has classified documents with stuff like this in it.
There just seem to be a lot more people in the world who hate America than other countries, so everybody targets the US with their emotional attacks.
Personally I think it is quite selfish of Julian Assange and his team at wikileaks to release classified documents like this. He is just doing it to be a "revolutionary" while not considering the actual damage he is doing to innocent Americans or people of other countries that were not involved with any politicians' "evil doings".
His actions come across sort of like the Joker in Batman: He is causing trouble just because "he wants to see the world burn".