Deep in the bowels of the Southern Europe Department of the Foreign and Commonwealth Office, a junior member of staff has been asked to start thinking about themes and possible visits for the visit of the Pope. remember: this visit is a State Visit and not (just) a pastoral visit by the Pope to British Catholics.
Once upon a time, this would have produced a series of considered options which would have found their way to the Department Head; he would have selected the most promising, and a submission would flow up the system until it reached the Secretary of State in a final form for him to approve.
What has happened here is that some junior members of staff have been daring (challenging, ironic, post-modern) and after a brainstorming session one has put up the sort of puerile tripe you might get from a sixth-form revue in a progressive Comprehensive, and this has been leaked.
This isn't about the Pope's visit at all, and the Ambassador to the Holy See's apology will put an end to the diplomatic difficulties.
The question is what this says about the judgement of those being recruited as the next generation of British diplomats and what it says about FCO's recruitment priorities.
Have a look here at the list of Foreign Secretaries since the Foreign and Commonwealth Office was established in 1968, and see if you can work out when the rot might have set in.