Art Criticism vs. Diplomacy
When it comes to the issue of Israeli ambassador in Sweden engaging in art criticism, Jonathan Edelstein made nice post about it.
I personally feel entitled comment only on the incident itself, not on the artwork in question. Regardless of what the artwork represented, what the author wanted to say and how people perceived it, Ambassador Mazel should have known better. He is professional diplomat and, as such, his job is, to quote Ambrose Bierce, "telling people to go to Hell in a way that would make them looking forward to such journey". Engaging in vandalism, no matter how morally and emotionally justifiable, is not the best way to represent your country.
If such incidents become standard diplomatic behaviour, I can only imagine what would French ambassador to USA do to cinema theatres showing The In-Laws.