Here is the BBC summary of the diplomatic cables published.
http://www.bbc.co.uk/news/world-us-canada-11858990
Pretty tame stuff really. Stuff you write to your co-workers, boss or mates would often be embarrassing if released for the world to view. That does not make the thoughts incorrect, just embarrassing.
is just about the most generous summary of the man that anyone could give.President Robert Mugabe of Zimbabwe as "the crazy old man".
is also fair comment. He certainly is no statesman or diplomat.Italian Prime Minister Silvio Berlusconi is referred to as "feckless, vain, and ineffective as a modern European leader" by a US diplomat in Rome.
The cries by some in the Arab world for the USA to take action against Iran shows them to be a gutless set of characters who are happy for Americans to be put in danger but have not even got the strength of character to say the Iran leadership are misguided & dangerous people.
Embarrassing & will cause some red faces for certain, but maybe all in all not a bad thing. A dose of reality for some might be good & perhaps more good than bad will emerge.