Is it funny?

I think there is some cultural difference on with jokes. So i I'll try to translate a joke which i I recently saw aon Weibo (a Chinese website) :

There must be something wrong with the UN.，rRecently.T the Russian Authority claims, "Human rights is above the state sovereignty, while the US makes a noise, who is fiercely insistent on the inviolability of the sovereignty. China are is trying to fight against the terrorism, while Britain shouts about the national unity. WTF, have they mistaken the wrong speechs paper?
最近联合国的气氛不对啊。俄罗斯在那里嚷嚷“人权高于主权”，美国在那嚷嚷“主权不容侵犯”！中国在高呼“打击恐怖主义”，英国高呼“国家统一”……你妹！这是拿错演讲稿了？

This might be a bit better. Jokes rarely translate well. In the final sentence "have they mistaken the wrong" - is it supposed to be something like "could that have taken the wrong speeches"? meaning did they take each other's speeches? If so, then the final sentence (i.e. the punchline) might be: "WTF, could have (mistakenly) given each other's speeches?"