And Kofi will only relese immunity unitl he 'is convinced' that the fact support criminal charges!
You see, diplomatic immunity is created so that our diplomats can't be prosecuted capriciously by, say Iran. It's not the best system, but it has a perfectly good reason for existing. Furthermore, if a diplomat is accused of a major crime, the home country can lift the immunity.
I think allowing the UN to have its own immunity is a very dangerous idea.